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 5930-00-826-2329
NSN 6105-01-587-8522
NSN 6130-01-535-0028
NSN 5998-01-553-9165
NSN 6135-01-450-3781
NSN 6130-00-119-3149
NSN 5915-00-847-7890
NSN 5855-00-560-0110
NSN 7035-00-495-2137
NSN 6110-00-886-3210
NSN 5998-01-474-5577
NSN 5990-01-216-1276