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 5985-00-602-2089
NSN 6135-01-217-3292
NSN 6240-01-536-7662
NSN 5985-00-533-0659
NSN 6650-01-595-6102
NSN 5905-00-809-0158
NSN 5960-00-081-1937
NSN 5920-00-285-2245
NSN 5910-01-414-6429
NSN 6145-01-580-8059
NSN 5999-01-381-6548
NSN 5935-00-809-9297