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 5905-01-605-1283
NSN 6130-01-198-7742
NSN 6145-00-801-4621
NSN 6105-01-167-8921
NSN 6645-01-518-1107
NSN 5920-01-188-8445
NSN 4140-00-146-3269
NSN 6645-01-595-7659
NSN 5910-01-448-4550
NSN 5998-01-634-0604
NSN 5985-01-592-0657
NSN 6220-01-415-3115