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 6130-01-383-9520
NSN 6135-00-681-2702
NSN 5930-01-012-3918
NSN 5945-01-634-0588
NSN 5965-01-551-9557
NSN 5935-01-003-9683
NSN 5910-01-625-8216
NSN 5935-00-459-2275
NSN 6650-00-027-2608
NSN 5910-01-371-9588
NSN 5935-01-614-8606
NSN 5990-01-408-6554