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 5895-01-004-2269
NSN 5960-00-249-9623
NSN 6105-01-283-8576
NSN 5990-00-925-6614
NSN 5965-01-398-9579
NSN 5960-01-445-3622
NSN 6610-01-266-8691
NSN 6110-01-365-5683
NSN 5905-01-099-6960
NSN 5935-00-445-6401
NSN 2925-01-434-6945
NSN 2925-01-519-6726