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 6240-01-314-9892
NSN 5935-00-105-9055
NSN 6105-01-350-0308
NSN 6135-01-532-7951
NSN 7035-01-542-6848
NSN 5920-00-554-0437
NSN 5945-01-046-6319
NSN 5945-00-404-2385
NSN 5920-01-487-6419
NSN 5905-01-423-1338
NSN 6650-01-594-0680
NSN 5910-01-521-3684