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 6110-00-397-7531
NSN 5895-01-188-7470
NSN 6110-01-231-0757
NSN 5950-01-177-6038
NSN 5945-01-574-0977
NSN 5975-01-155-4036
NSN 5910-01-430-3276
NSN 5910-01-659-7587
NSN 6110-01-200-3517
NSN 7035-00-803-3056
NSN 5998-01-246-4483
NSN 5920-01-537-4904