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 6145-00-007-6429
NSN 5945-00-284-7312
NSN 5965-01-277-4161
NSN 6610-00-712-2217
NSN 5930-01-393-8612
NSN 5945-01-005-1445
NSN 5895-01-620-0677
NSN 5965-01-633-8849
NSN 5855-01-042-7990
NSN 5920-01-290-3771
NSN 6145-01-203-9468
NSN 5999-01-371-8767