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 6685-00-928-0442
NSN 5950-01-381-2994
NSN 6685-00-299-8496
NSN 6650-01-449-3042
NSN 6135-01-466-3980
NSN 7035-01-350-4247
NSN 5935-01-371-2565
NSN 6320-01-290-0514
NSN 6685-00-167-3801
NSN 6110-01-574-2577
NSN 5925-01-316-8294
NSN 2925-01-202-6451