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 6110-00-855-5695
NSN 5960-00-929-8002
NSN 6135-01-460-7809
NSN 6220-01-128-7552
NSN 6650-00-064-7199
NSN 6145-01-484-8735
NSN 5960-01-263-6781
NSN 6130-01-583-8707
NSN 5999-00-830-4130
NSN 5999-00-099-6889
NSN 5935-01-111-1343
NSN 6620-01-083-4672