Buna-N Flange Gaskets

93 products

Buna-N flange gaskets, sometimes called Nitrile flange gaskets or NBR flange gaskets, are resistant to oils, fuels, and greases – plus mild chemicals and water. Buna-N is a tough and durable material with good resistance to abrasion, compression, and tearing. It is a multipurpose material with broad ranging application coverage. Flange gaskets are used to seal ASME/ANSI pipe flanges.

Product name For Flange ANSI Class For Pipe Size ID OD # of Bolt Holes Thickness Price
Full Face Buna-N Rubber Flange Gasket for 1/2" Pipe - 1/16" Thick - Class 150 150 1/2" 27/32" 3-1/2" 4 1/16"
$0.88 / each
Full Face Buna-N Rubber Flange Gasket for 3/4" Pipe - 1/16" Thick - Class 150 150 3/4" 1-1/16" 3-7/8" 4 1/16"
$1.08 / each
Full Face Buna-N Rubber Flange Gasket for 1" Pipe - 1/16" Thick - Class 150 150 1" 1-5/16" 4-1/4" 4 1/16"
$1.33 / each
Full Face Buna-N Rubber Flange Gasket for 1-1/4" Pipe - 1/16" Thick - Class 150 150 1-1/4" 1-5/8" 4-5/8" 4 1/16"
$1.55 / each
Full Face Buna-N Rubber Flange Gasket for 1-1/2" Pipe - 1/16" Thick - Class 150 150 1-1/2" 1-7/8" 5" 4 1/16"
$1.95 / each
Full Face Buna-N Rubber Flange Gasket for 2" Pipe - 1/16" Thick - Class 150 150 2" 2-3/8" 6" 4 1/16"
$2.43 / each
Full Face Buna-N Rubber Flange Gasket for 2-1/2" Pipe - 1/16" Thick - Class 150 150 2-1/2" 2-7/8" 7" 4 1/16"
$3.15 / each
Full Face Buna-N Rubber Flange Gasket for 3" Pipe - 1/16" Thick - Class 150 150 3" 3-1/2" 7-1/2" 4 1/16"
$3.98 / each
Full Face Buna-N Rubber Flange Gasket for 3-1/2" Pipe - 1/16" Thick - Class 150 150 3-1/2" 4" 8-1/2" 8 1/16"
$4.83 / each
Full Face Buna-N Rubber Flange Gasket for 4" Pipe - 1/16" Thick - Class 150 150 4" 4-1/2" 9" 8 1/16"
$5.60 / each
Full Face Buna-N Rubber Flange Gasket for 4-1/2" Pipe - 1/16" Thick - Class 150 150 4-1/2" 5" 9-1/4" 8 1/16"
$6.38 / each
Full Face Buna-N Rubber Flange Gasket for 5" Pipe - 1/16" Thick - Class 150 150 5" 5-9/16" 10" 8 1/16"
$7.73 / each
Full Face Buna-N Rubber Flange Gasket for 6" Pipe - 1/16" Thick - Class 150 150 6" 6-5/8" 11" 8 1/16"
$10.25 / each
Full Face Buna-N Rubber Flange Gasket for 7" Pipe - 1/16" Thick - Class 150 150 7" 7-5/8" 12-1/2" 8 1/16"
$11.63 / each
Full Face Buna-N Rubber Flange Gasket for 8" Pipe - 1/16" Thick - Class 150 150 8" 8-5/8" 13-1/2" 8 1/16"
$13.98 / each
Full Face Buna-N Rubber Flange Gasket for 10" Pipe - 1/16" Thick - Class 150 150 10" 10-3/4" 16" 12 1/16"
$18.90 / each
Full Face Buna-N Rubber Flange Gasket for 12" Pipe - 1/16" Thick - Class 150 150 12" 12-3/4" 19" 12 1/16"
$22.56 / each
Full Face Buna-N Rubber Flange Gasket for 1/2" Pipe - 1/8" Thick - Class 150 150 1/2" 13/16" 3-1/2" 4 1/8"
$1.58 / each
Full Face Buna-N Rubber Flange Gasket for 3/4" Pipe - 1/8" Thick - Class 150 150 3/4" 1-1/16" 3-7/8" 4 1/8"
$2.05 / each
Full Face Buna-N Rubber Flange Gasket for 1" Pipe - 1/8" Thick - Class 150 150 1" 1-5/16" 4-1/4" 4 1/8"
$2.43 / each
Full Face Buna-N Rubber Flange Gasket for 1-1/4" Pipe - 1/8" Thick - Class 150 150 1-1/4" 1-5/8" 4-5/8" 4 1/8"
$2.73 / each
Full Face Buna-N Rubber Flange Gasket for 1-1/2" Pipe - 1/8" Thick - Class 150 150 1-1/2" 1-7/8" 5" 4 1/8"
$3.55 / each
Full Face Buna-N Rubber Flange Gasket for 2" Pipe - 1/8" Thick - Class 150 150 2" 2-3/8" 6" 4 1/8"
$4.50 / each
Full Face Buna-N Rubber Flange Gasket for 2-1/2" Pipe - 1/8" Thick - Class 150 150 2-1/2" 2-7/8" 7" 4 1/8"
$5.85 / each
Full Face Buna-N Rubber Flange Gasket for 3" Pipe - 1/8" Thick - Class 150 150 3" 3-1/2" 7-1/2" 4 1/8"
$7.43 / each
Full Face Buna-N Rubber Flange Gasket for 4" Pipe - 1/8" Thick - Class 150 150 4" 4-1/2" 9" 8 1/8"
$10.43 / each
Full Face Buna-N Rubber Flange Gasket for 6" Pipe - 1/8" Thick - Class 150 150 6" 6-5/8" 11" 8 1/8"
$19.15 / each
Full Face Buna-N Rubber Flange Gasket for 10" Pipe - 1/8" Thick - Class 150 150 10" 10-3/4" 16" 12 1/8"
$30.60 / each
Full Face Buna-N Rubber Flange Gasket for 12" Pipe - 1/8" Thick - Class 150 150 12" 12-3/4" 19" 12 1/8"
$41.07 / each
Full Face Buna-N Rubber Flange Gasket for 1/2" Pipe - 1/16" Thick - Class 300 300 1/2" 27/32" 3-3/4" 4 1/16"
$1.88 / each
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