Flange Gaskets

Generally, two mating surfaces of the flanges have microscopic irregularities on their surfaces. In order to fill those microscopic irregularities, a mechanical gasket is used so as to prevent leakages from or into the joined objects while under compression. Such a gasket is called a flange gasket. Flange gaskets acts as a static seal between the two irregular flange faces and are made to operate under various operating conditions with varied pressure and temperature ratings.

Ring Gaskets:

As the name suggests, ring gaskets resemble flat rings. They come with an inner diameter (ID), outer diameter (OD) and thickness. Western Rubbers’ can manufacture customized ring gaskets in a variety of material like Silicone, EPDM, Viton, Nitrile, etc. and in and given size. The manufacturing process may include direct molding (endless gaskets), usually preferred for small sized gaskets or splicing and vulcanizing, if the gasket has a large diameter. This depends on client specification.

Full-Face Gasket:

A full-face gasket is similar to a ring gasket with the exception of having bolt holes which are aligned in a bolt circle at the Pitch Circle Dimeter (PCD).Both ring gaskets and full-face gaskets come in metric and standard sizes and in various thicknesses. Materials will vary according to the application. All gasketsare made using our in-house high-speed, high accuracy die cutting equipment to produce products that meet your exact requirements.

-Fluroelastomers (Viton)

-Neoprene

-Nitrile

-Natural Rubber

-Silicone

-Hydrogentaed Nitrile Rubber (HNBR)

-Ethylene Propylene Diene Monomer (EPDM 

-Oil and gas industries

-Petrochemical

-Pipelines

-Chemical Industries

-Pharmaceutical

-Food Processing

-Electronic

Sizing - Chart

You will find below the standard flange sizes, along with specific dimensions provided for Ring and Full Face Gaskets. Please note the standard thickness for Rubber Flange Gaskets is: 1/4” (6.35 mm) or 1/8” (3.175 mm) or 1/16” (1.5 mm)

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  • 150 #Flanges
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  • 2500 #Flanges

    ASME B16.21 Gasket Dimensions for ASME B16.5 & B16.47 - 150# Flanges


    All dimensions are in inches

    R - Ring

    FF - Full Face

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF150 001 1/2 5/6 1 7/8 3 1/2 2 3/8 4 5/8
    RI/FF150 002 3/4 1 2 1/4 3 7/8 2 3/4 4 5/8
    RI/FF150 003 1 1 1/3 2 5/8 4 1/4 3 1/8 4 5/8
    RI/FF150 004 1 1/4 1 2/3 3 4 5/8 3 1/2 4 5/8
    RI/FF150 005 1 1/2 2 3 3/8 5 3 7/8 4 5/8
    RI/FF150 006 2 2 3/8 4 1/8 6 4 3/4 4 3/4
    RI/FF150 007 2 1/2 2 7/8 4 7/8 7 5 1/2 4 3/4
    RI/FF150 008 3 3 1/2 5 3/8 7 1/2 6 4 3/4
    RI/FF150 009 3 1/2 4 6 3/8 8 1/2 7 8 3/4
    RI/FF150 010 4 4 1/2 6 7/8 9 7 1/2 8 3/4
    RI/FF150 011 5 5 5/9 7 3/4 10 8 1/2 8 7/8
    RI/FF150 012 6 6 5/8 8 3/4 11 9 1/2 8 7/8
    RI/FF150 013 8 8 5/8 11 13 1/2 11 3/4 8 7/8
    RI/FF150 014 10 10 3/4 13 3/8 16 14 1/4 12 1
    RI/FF150 015 12 12 3/4 16 1/8 19 17 12 1
    RI/FF150 016 14 14 17 3/4 21 18 3/4 12 1 1/8
    RI/FF150 017 16 16 20 1/4 23 1/2 21 1/4 16 1 1/8
    RI/FF150 018 18 18 21 5/8 25 22 3/4 16 1 1/4
    RI/FF150 019 20 20 23 7/8 27 1/2 25 20 1 1/4
    RI/FF150 020 24 24 28 1/4 32 29 1/2 20 1 3/8

    Section A

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF150 021 26 26 30 1/2 34 1/4 31 3/4 24 1 3/8
    RI/FF150 022 28 28 32 3/4 36 1/2 34 28 1 3/8
    RI/FF150 023 30 30 34 3/4 38 3/4 36 28 1 3/8
    RI/FF150 024 32 32 37 41 3/4 38 1/2 28 1 5/8
    RI/FF150 025 34 34 39 43 3/4 40 1/2 32 1 5/8
    RI/FF150 026 36 36 41 1/4 46 42 3/4 32 1 5/8
    RI/FF150 027 38 38 43 3/4 48 3/4 45 1/4 32 1 5/8
    RI/FF150 028 40 40 45 3/4 50 3/4 47 1/4 36 1 5/8
    RI/FF150 029 42 42 48 53 49 1/2 36 1 5/8
    RI/FF150 030 44 44 50 1/4 55 1/4 51 3/4 40 1 5/8
    RI/FF150 031 46 46 52 1/4 57 1/4 53 3/4 40 1 5/8
    RI/FF150 032 48 48 54 1/2 59 1/2 56 44 1 5/8
    RI/FF150 033 50 50 56 1/2 61 3/4 58 1/4 44 1 7/8
    RI/FF150 034 52 52 58 3/4 64 60 1/2 44 1 7/8
    RI/FF150 035 54 54 61 66 1/4 62 3/4 44 1 7/8
    RI/FF150 036 56 56 63 1/4 68 3/4 65 48 1 7/8
    RI/FF150 037 58 58 65 1/2 71 67 1/4 48 1 7/8
    RI/FF150 038 60 60 67 1/2 73 69 1/4 52 1 7/8

    Section B

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF150 039 26 26 28 5/9 31 29 1/3 36 7/8
    RI/FF150 040 28 28 30 5/9 33 31 1/3 40 7/8
    RI/FF150 041 30 30 32 5/9 35 33 1/3 44 7/8
    RI/FF150 042 32 32 34 2/3 37 35 4/9 48 7/8
    RI/FF150 043 34 34 36 4/5 39 5/9 37 2/3 40 1
    RI/FF150 044 36 36 38 7/8 41 5/8 39 3/4 44 1
    RI/FF150 045 38 38 41 1/8 44 1/4 42 1/8 40 1 1/8
    RI/FF150 046 40 40 43 1/8 46 1/4 44 1/8 44 1 1/8
    RI/FF150 047 42 42 45 1/8 48 1/4 46 1/8 48 1 1/8
    RI/FF150 048 44 44 47 1/8 50 1/4 48 1/8 52 1 1/8
    RI/FF150 049 46 46 49 4/9 52 4/5 50 5/9 40 1 1/4
    RI/FF150 050 48 48 51 4/9 54 4/5 52 5/9 44 1 1/4
    RI/FF150 051 50 50 53 4/9 56 4/5 54 5/9 48 1 1/4
    RI/FF150 052 52 52 55 4/9 58 4/5 56 5/9 52 1 1/4
    RI/FF150 053 54 54 57 5/8 61 58 3/4 56 1 1/4
    RI/FF150 054 56 56 59 5/8 63 60 3/4 60 1 1/4
    RI/FF150 055 58 58 62 1/5 66 63 4/9 48 1 3/8
    RI/FF150 056 60 60 64 1/5 68 65 4/9 52 1 3/8

    ASME B16.21 Gasket Dimensions for ASME B16.5 & B16.47 - 400# Flanges


    All dimensions are in inches

    R - Ring

    FF - Full Face

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF400 001 1/2 5/6 2 1/8 3 3/4 2 5/8 4 5/8
    RI/FF400 002 3/4 1 2 5/8 4 5/8 3 1/4 4 3/4
    RI/FF400 003 1 1 1/3 2 7/8 4 7/8 3 1/2 4 3/4
    RI/FF400 004 1 1/4 1 2/3 3 1/4 5 1/4 3 7/8 4 3/4
    RI/FF400 005 1 1/2 2 3 3/4 6 1/8 4 1/2 4 7/8
    RI/FF400 006 2 2 3/8 4 3/8 6 1/2 5 8 3/4
    RI/FF400 007 2 1/2 2 7/8 5 1/8 7 1/2 5 7/8 8 7/8
    RI/FF400 008 3 3 1/2 5 7/8 8 1/4 6 5/8 8 7/8
    RI/FF400 009 3 1/2 4 6 3/8 9 7 1/4 8 1
    RI/FF400 010 4 4 1/2 7 10 7 7/8 8 1
    RI/FF400 011 5 5 5/9 8 3/8 11 9 1/4 8 1
    RI/FF400 012 6 6 5/8 9 3/4 12 1/2 10 5/8 12 1
    RI/FF400 013 8 8 5/8 12 15 13 12 1 1/8
    RI/FF400 014 10 10 3/4 14 1/8 17 1/2 15 1/4 16 1 1/4
    RI/FF400 015 12 12 3/4 16 1/2 20 1/2 17 3/4 16 1 3/8
    RI/FF400 016 14 14 19 23 20 1/4 20 1 3/8
    RI/FF400 017 16 16 21 1/8 25 1/2 22 1/2 20 1 1/2
    RI/FF400 018 18 18 23 3/8 28 24 3/4 24 1 1/2
    RI/FF400 019 20 20 25 1/2 30 1/2 27 24 1 5/8
    RI/FF400 020 24 24 30 1/4 36 32 24 1 7/8

    Section A

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF400 021 26 26 32 3/4 38 1/4 34 1/2 28 1 7/8
    RI/FF400 022 28 28 35 1/8 40 3/4 37 28 2
    RI/FF400 023 30 30 37 1/4 43 39 1/4 28 2 1/8
    RI/FF400 024 32 32 39 1/2 45 1/4 41 1/2 28 2 1/8
    RI/FF400 025 34 34 41 1/2 47 1/2 43 1/2 28 2 1/8
    RI/FF400 026 36 36 44 50 46 32 2 1/8
    RI/FF400 027 38 38 42 1/4 47 1/2 44 32 1 7/8
    RI/FF400 028 40 40 44 4/7 50 46 1/4 32 2
    RI/FF400 029 42 42 46 3/8 52 48 1/4 32 2
    RI/FF400 030 44 44 48 1/2 54 1/2 50 1/2 32 2 1/8
    RI/FF400 031 46 46 50 3/4 56 3/4 52 3/4 36 2 1/8
    RI/FF400 032 48 48 53 59 1/2 55 1/4 28 2 3/8
    RI/FF400 033 50 50 55 1/4 61 3/4 57 1/2 32 2 3/8
    RI/FF400 034 52 52 57 1/4 63 3/4 59 1/2 32 2 3/8
    RI/FF400 035 54 54 59 3/4 67 62 1/4 28 2 5/8
    RI/FF400 036 56 56 61 3/4 69 64 1/4 32 2 5/8
    RI/FF400 037 58 58 63 3/4 71 66 1/4 32 2 5/8
    RI/FF400 038 60 60 66 1/4 74 1/4 69 32 2 7/8

    Section B

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF400 039 26 26 29 3/8 33 1/2 30 3/4 28 1 1/2
    RI/FF400 040 28 28 31 1/2 36 33 24 1 5/8
    RI/FF400 041 30 30 33 3/4 38 1/4 35 1/4 28 1 5/8
    RI/FF400 042 32 32 35 7/8 40 3/4 37 1/2 28 1 3/4
    RI/FF400 043 34 34 37 7/8 42 3/4 39 1/2 32 1 3/4
    RI/FF400 044 36 36 40 1/4 45 1/2 42 28 1 7/8

    ASME B16.21 Gasket Dimensions for ASME B16.5 & B16.47 - 600# Flanges


    All dimensions are in inches

    R - Ring

    FF - Full Face

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF600 001 1/2 5/6 2 1/8 3 3/4 2 5/8 4 5/8
    RI/FF600 002 3/4 1 2 5/8 4 5/8 3 1/4 4 3/4
    RI/FF600 003 1 1 1/3 2 7/8 4 7/8 3 1/2 4 3/4
    RI/FF600 004 1 1/4 1 2/3 3 1/4 5 1/4 3 7/8 4 3/4
    RI/FF600 005 1 1/2 2 3 3/4 6 1/8 4 1/2 4 7/8
    RI/FF600 006 2 2 3/8 4 3/8 6 1/2 5 8 3/4
    RI/FF600 007 2 1/2 2 7/8 5 1/8 7 1/2 5 7/8 8 7/8
    RI/FF600 008 3 3 1/2 5 7/8 8 1/4 6 5/8 8 7/8
    RI/FF600 009 3 1/2 4 6 3/8 9 7 1/4 8 1
    RI/FF600 010 4 4 1/2 7 5/8 10 3/4 8 1/2 8 1
    RI/FF600 011 5 5 5/9 9 1/2 13 10 1/2 8 1 1/8
    RI/FF600 012 6 6 5/8 10 1/2 14 11 1/2 12 1 1/8
    RI/FF600 013 8 8 5/8 12 5/8 16 1/2 13 3/4 12 1 1/4
    RI/FF600 014 10 10 3/4 15 3/4 20 17 16 1 3/8
    RI/FF600 015 12 12 3/4 18 22 19 1/4 20 1 3/8
    RI/FF600 016 14 14 19 3/8 23 3/4 20 3/4 20 1 1/2
    RI/FF600 017 16 16 22 1/4 27 23 3/4 20 1 5/8
    RI/FF600 018 18 18 24 1/8 29 1/4 25 3/4 20 1 3/4
    RI/FF600 019 20 20 26 7/8 32 28 1/2 24 1 3/4
    RI/FF600 020 24 24 31 1/8 37 33 24 2

    Section A

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF600 021 26 26 34 1/8 40 36 28 2
    RI/FF600 022 28 28 36 42 1/4 38 28 2 1/8
    RI/FF600 023 30 30 38 1/4 44 1/2 40 1/4 28 2 1/8
    RI/FF600 024 32 32 40 1/4 47 42 1/2 28 2 3/8
    RI/FF600 025 34 34 42 1/4 49 44 1/2 28 2 3/8
    RI/FF600 026 36 36 44 1/2 51 3/4 47 28 2 5/8
    RI/FF600 027 38 38 43 1/2 50 45 3/4 28 2 3/8
    RI/FF600 028 40 40 45 1/2 52 47 3/4 32 2 3/8
    RI/FF600 029 42 42 48 55 1/4 50 1/2 28 2 5/8
    RI/FF600 030 44 44 50 57 1/4 52 1/2 32 2 5/8
    RI/FF600 031 46 46 52 1/4 59 1/2 54 3/4 32 2 5/8
    RI/FF600 032 48 48 54 3/4 62 3/4 57 1/2 32 2 7/8
    RI/FF600 033 50 50 57 65 3/4 60 28 3 1/8
    RI/FF600 034 52 52 59 67 3/4 62 32 3 1/8
    RI/FF600 035 54 54 61 1/4 70 64 1/4 32 3 1/8
    RI/FF600 036 56 56 63 1/2 73 66 3/4 32 3 3/8
    RI/FF600 037 58 58 65 1/2 75 68 3/4 32 3 3/8
    RI/FF600 038 60 60 67 3/4 78 1/2 71 3/4 28 3 5/8

    Section B

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF600 039 26 26 30 1/8 35 31 3/4 28 1 3/4
    RI/FF600 040 28 28 32 1/4 37 1/2 34 28 1 7/8
    RI/FF600 041 30 30 34 5/8 40 1/4 36 1/2 28 2
    RI/FF600 042 32 32 36 3/4 42 3/4 38 3/4 28 2 1/8
    RI/FF600 043 34 34 39 1/4 45 3/4 41 1/2 24 2 3/8
    RI/FF600 044 36 36 41 1/4 47 3/4 43 1/2 28 2 3/8

    ASME B16.21 Gasket Dimensions for ASME B16.5 & B16.47 - 900# Flanges


    All dimensions are in inches

    R - Ring

    FF - Full Face

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF900 001 1/2 5/6 2 1/2 4 3/4 3 1/4 4 7/8
    RI/FF900 002 3/4 1 2 3/4 5 1/8 3 1/2 4 7/8
    RI/FF900 003 1 1 1/3 3 1/8 5 7/8 4 4 1
    RI/FF900 004 1 1/4 1 2/3 3 1/2 6 1/4 4 3/8 4 1
    RI/FF900 005 1 1/2 2 3 7/8 7 4 7/8 4 1 1/8
    RI/FF900 006 2 2 3/8 5 5/8 8 1/2 6 1/2 8 1
    RI/FF900 007 2 1/2 2 7/8 6 1/2 9 5/8 7 1/2 8 1 1/8
    RI/FF900 008 3 3 1/2 6 5/8 9 1/2 7 1/2 8 1
    RI/FF900 009 4 4 1/2 8 1/8 11 1/2 9 1/4 8 1 1/4
    RI/FF900 010 5 5 5/9 9 3/4 13 3/4 11 8 1 3/8
    RI/FF900 011 6 6 5/8 11 3/8 15 12 1/2 12 1 1/4
    RI/FF900 012 8 8 5/8 14 1/8 18 1/2 15 1/2 12 1 1/2
    RI/FF900 013 10 10 3/4 17 1/8 21 1/2 18 1/2 16 1 1/2
    RI/FF900 014 12 12 3/4 19 5/8 24 21 20 1 1/2
    RI/FF900 015 14 14 20 1/2 25 1/4 22 20 1 5/8
    RI/FF900 016 16 16 22 5/8 27 3/4 24 1/4 20 1 3/4
    RI/FF900 017 18 18 25 1/8 31 27 20 2
    RI/FF900 018 20 20 27 1/2 33 3/4 29 1/2 20 2 1/8
    RI/FF900 019 24 24 33 41 35 1/2 20 2 5/8

    Section A

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF900 020 26 26 34 3/4 42 3/4 37 1/2 20 2 7/8
    RI/FF900 021 28 28 37 1/4 46 40 1/4 20 3 1/8
    RI/FF900 022 30 30 39 3/4 48 1/2 42 3/4 20 3 1/8
    RI/FF900 023 32 32 42 1/4 51 3/4 45 1/2 20 3 3/8
    RI/FF900 024 34 34 44 3/4 55 48 1/4 20 3 5/8
    RI/FF900 025 36 36 47 1/4 57 1/2 50 3/4 20 3 5/8
    RI/FF900 026 38 38 47 1/4 57 1/2 50 3/4 20 3 5/8
    RI/FF900 027 40 40 49 1/4 59 1/2 52 3/4 24 3 5/8
    RI/FF900 028 42 42 51 1/4 61 1/2 54 3/4 24 3 5/8
    RI/FF900 029 44 44 53 7/8 64 7/8 57 5/8 24 3 7/8
    RI/FF900 030 46 46 56 1/2 68 1/4 60 1/2 24 4 1/8
    RI/FF900 031 48 48 58 1/2 70 1/4 62 1/2 24 4 1/8

    Section B

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF900 032 26 26 33 40 1/4 35 1/2 20 2 5/8
    RI/FF900 033 28 28 35 1/2 43 1/2 38 1/4 20 2 7/8
    RI/FF900 034 30 30 37 3/4 46 1/2 40 3/4 20 3 1/8
    RI/FF900 035 32 32 40 48 3/4 43 20 3 1/8
    RI/FF900 036 34 34 42 1/4 51 3/4 45 1/2 20 3 3/8
    RI/FF900 037 36 36 44 1/4 53 47 1/4 24 3 1/8

    ASME B16.21 Gasket Dimensions for ASME B16.5 & B16.47 - 1500# Flanges


    All dimensions are in inches

    R - Ring

    FF - Full Face

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF1500 001 1/2 5/6 2 1/2 4 3/4 3 1/4 4 7/8
    RI/FF1500 002 3/4 1 2 3/4 5 1/8 3 1/2 4 7/8
    RI/FF1500 003 1 1 1/3 3 1/8 5 7/8 4 4 1
    RI/FF1500 004 1 1/4 1 2/3 3 1/2 6 1/4 4 3/8 4 1
    RI/FF1500 005 1 1/2 2 3 7/8 7 4 7/8 4 1 1/8
    RI/FF1500 006 2 2 3/8 5 5/8 8 1/2 6 1/2 8 1
    RI/FF1500 007 2 1/2 2 7/8 6 1/2 9 5/8 7 1/2 8 1 1/8
    RI/FF1500 008 3 3 1/2 6 7/8 10 1/2 8 8 1 1/4
    RI/FF1500 009 4 4 1/2 8 1/4 12 1/4 9 1/2 8 1 3/8
    RI/FF1500 010 5 5 5/9 10 14 3/4 11 1/2 8 1 5/8
    RI/FF1500 011 6 6 5/8 11 1/8 15 1/2 12 1/2 12 1 1/2
    RI/FF1500 012 8 8 5/8 13 7/8 19 15 1/2 12 1 3/4
    RI/FF1500 013 10 10 3/4 17 1/8 23 19 12 2
    RI/FF1500 014 12 12 3/4 20 1/2 26 1/2 22 1/2 16 2 1/8
    RI/FF1500 015 14 14 22 3/4 29 1/2 25 16 2 3/8
    RI/FF1500 016 16 16 25 1/4 32 1/2 27 3/4 16 2 5/8
    RI/FF1500 017 18 18 27 3/4 36 30 1/2 16 2 7/8
    RI/FF1500 018 20 20 29 3/4 38 3/4 32 3/4 16 3 1/8
    RI/FF1500 019 24 24 35 1/2 46 39 16 3 5/8

    ASME B16.21 Gasket Dimensions for ASME B16.5 & B16.47 - 2500# Flanges


    All dimensions are in inches

    R - Ring

    FF - Full Face

    Part no
    Pipe Size
    Gasket I.D
    Gasket O.D(R)
    Gasket O.D(FF)
    Bolt Circle(FF)
    Bolt Hole Qty(FF)
    Bolt Hole Dia(FF)
    RI/FF2000 001 1/2 5/6 2 3/4 5 1/4 3 1/2 4 7/8
    RI/FF2000 002 3/4 1 3 5 1/2 3 3/4 4 7/8
    RI/FF2000 003 1 1 1/3 3 3/8 6 1/4 4 1/4 4 1
    RI/FF2000 004 1 1/4 1 2/3 4 1/8 7 1/4 5 1/8 4 1 1/8
    RI/FF2000 005 1 1/2 2 4 5/8 8 5 3/4 4 1 1/4
    RI/FF2000 006 2 2 3/8 5 3/4 9 1/4 6 3/4 8 1 1/8
    RI/FF2000 007 2 1/2 2 7/8 6 5/8 10 1/2 7 3/4 8 1 1/4
    RI/FF2000 008 3 3 1/2 7 3/4 12 9 8 1 3/8
    RI/FF2000 009 4 4 1/2 9 1/4 14 10 3/4 8 1 5/8
    RI/FF2000 010 5 5 5/9 11 16 1/2 12 3/4 8 1 7/8
    RI/FF2000 011 6 6 5/8 12 1/2 19 14 1/2 8 2 1/8
    RI/FF2000 012 8 8 5/8 15 1/4 21 3/4 17 1/4 12 2 1/8
    RI/FF2000 013 10 10 3/4 18 3/4 26 1/2 21 1/4 12 2 5/8
    RI/FF2000 014 12 12 3/4 21 5/8 30 24 3/8 12 2 7/8

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