A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.
Classification: Gaskets,washers & other seals
NSN 5975-01-039-6298
NSN 4140-00-119-1689
NSN 2925-00-572-0454
NSN 5905-01-310-9589
NSN 5920-01-412-1080
NSN 5950-01-322-2634
NSN 6150-01-606-5854
NSN 6130-01-550-8676
NSN 5835-00-051-9092
NSN 5895-01-422-0954
NSN 5915-01-225-5299
NSN 6320-01-433-3953