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 5945-00-269-5375
NSN 5998-01-568-3950
NSN 5920-01-292-6688
NSN 5996-01-400-0917
NSN 5945-01-015-4641
NSN 6150-01-519-3587
NSN 6685-01-319-6680
NSN 5960-01-386-5770
NSN 5910-01-050-9654
NSN 5915-01-641-4000
NSN 5960-01-468-4407
NSN 5915-01-248-1099