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 5996-00-043-1991
NSN 7035-01-083-0282
NSN 6130-01-004-8977
NSN 5920-01-153-7487
NSN 5950-01-521-9076
NSN 6645-00-226-2270
NSN 6240-00-948-6652
NSN 6150-00-778-8610
NSN 4140-01-005-5364
NSN 6320-01-406-6098
NSN 6135-00-927-5848
NSN 2925-01-424-0235