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 5985-01-361-8982
NSN 6645-01-455-1293
NSN 6150-01-338-1142
NSN 5998-00-597-7175
NSN 5965-01-171-7612
NSN 6650-01-501-5661
NSN 5985-00-416-5683
NSN 6130-01-467-3997
NSN 6145-01-525-7611
NSN 5855-01-035-2866
NSN 5999-00-221-4615
NSN 7035-01-119-6271