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 5935-01-467-3320
NSN 5945-01-647-7065
NSN 6130-01-570-0004
NSN 5965-01-580-0938
NSN 5996-00-323-8215
NSN 6130-01-352-5644
NSN 6645-01-324-0348
NSN 6150-01-617-8621
NSN 5925-00-776-5062
NSN 4140-01-024-8595
NSN 5945-01-499-6263
NSN 5990-01-619-6446