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 7035-01-048-7122
NSN 6130-01-574-7662
NSN 6240-01-506-2059
NSN 5925-00-689-4646
NSN 6650-00-086-1571
NSN 5905-01-236-2540
NSN 5925-00-956-5715
NSN 5950-00-186-0682
NSN 5996-01-174-3183
NSN 6645-01-656-6416
NSN 5945-01-219-6023
NSN 7035-01-223-4097