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 5895-01-432-3963
NSN 6645-01-589-0983
NSN 5998-01-023-7404
NSN 5855-00-411-8688
NSN 5996-00-205-2933
NSN 6150-01-634-0575
NSN 5930-01-205-3804
NSN 6610-01-217-4162
NSN 6240-00-079-0112
NSN 5930-01-088-0669
NSN 5855-01-495-1111
NSN 6130-01-143-5730