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 6145-01-537-5685
NSN 6105-01-294-2582
NSN 2925-01-206-6063
NSN 5920-01-537-0684
NSN 5930-00-619-9316
NSN 5920-00-555-1877
NSN 6645-01-609-7365
NSN 5985-00-661-2263
NSN 6620-01-598-2271
NSN 6135-00-461-3590
NSN 6620-01-284-4109
NSN 5990-00-238-3333