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 5950-01-446-2984
NSN 6135-01-122-4448
NSN 6645-00-124-9939
NSN 5920-00-077-8528
NSN 5999-01-608-3908
NSN 6135-01-592-4139
NSN 6135-01-390-7364
NSN 6610-00-689-9457
NSN 5990-01-003-2627
NSN 5998-01-420-6620
NSN 5895-01-366-1078
NSN 5920-00-492-5516