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 5905-01-324-6294
NSN 6650-00-299-9681
NSN 6620-00-959-6614
NSN 6320-01-326-1316
NSN 6135-01-056-4609
NSN 6130-01-245-3096
NSN 5930-01-646-1252
NSN 6220-00-838-0182
NSN 2925-01-224-1885
NSN 6220-01-349-3199
NSN 6105-01-140-7682
NSN 5920-01-044-4877