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 7035-01-068-4175
NSN 5905-01-126-4211
NSN 5935-01-264-0133
NSN 5895-00-964-3413
NSN 5999-00-052-4851
NSN 2925-00-504-2363
NSN 7035-00-299-7150
NSN 4140-01-343-0501
NSN 6105-01-045-1856
NSN 6240-00-070-6615
NSN 6645-00-256-4072
NSN 6650-01-132-0737