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 5935-00-739-2282
NSN 6645-00-851-6654
NSN 6650-01-422-1037
NSN 6610-00-992-5129
NSN 6240-01-505-0030
NSN 6620-01-286-2204
NSN 7035-01-269-4152
NSN 6110-01-310-8476
NSN 5895-01-012-9335
NSN 5930-01-514-6206
NSN 6320-01-299-6367
NSN 5895-01-308-7687