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 6620-00-555-3992
NSN 5920-00-554-0437
NSN 6650-01-241-7978
NSN 5990-01-370-4785
NSN 5945-01-606-4387
NSN 7035-00-968-4848
NSN 6610-00-675-8157
NSN 5985-00-495-0063
NSN 5920-00-590-4192
NSN 5965-01-234-6844
NSN 6645-01-463-3024
NSN 5895-01-268-6064