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 6105-01-576-6841
NSN 7035-01-319-2315
NSN 5935-01-210-0121
NSN 6240-01-479-9044
NSN 6645-00-171-9251
NSN 5910-01-462-2440
NSN 4140-01-069-4576
NSN 5975-00-647-4968
NSN 5999-01-020-7641
NSN 5905-00-966-1956
NSN 5998-01-332-4414
NSN 6685-01-245-9862