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 5855-01-344-8688
NSN 7035-01-005-5459
NSN 6110-01-207-0156
NSN 5905-01-276-7156
NSN 6105-01-542-5797
NSN 6135-00-753-2276
NSN 7035-01-123-8723
NSN 5999-01-365-2581
NSN 5920-01-510-1786
NSN 5910-01-568-9354
NSN 6105-01-416-0997
NSN 5905-01-464-3833