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 5999-00-702-8268
NSN 5950-01-175-8397
NSN 5910-01-249-7783
NSN 6110-00-401-5554
NSN 5999-00-732-4722
NSN 5965-01-560-8572
NSN 5998-01-023-7872
NSN 6130-01-485-7295
NSN 6685-01-190-0871
NSN 5835-00-554-0399
NSN 5965-01-418-7226
NSN 6685-01-291-9368