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 5965-01-101-9094
NSN 5965-00-624-4134
NSN 6620-01-232-0680
NSN 5965-01-381-2998
NSN 6105-01-316-8692
NSN 5930-00-448-2785
NSN 5950-00-451-7406
NSN 6150-00-996-7668
NSN 5935-00-258-6736
NSN 5990-01-311-7491
NSN 5920-01-107-6475
NSN 5950-00-983-7374