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 6650-00-935-4247
NSN 6610-01-132-1898
NSN 5960-00-337-2792
NSN 5905-01-132-0264
NSN 5895-01-439-6004
NSN 6135-01-265-1384
NSN 6105-01-608-3974
NSN 6645-01-578-6815
NSN 5910-01-423-8567
NSN 6685-01-013-8915
NSN 4140-01-270-1067
NSN 6650-01-588-4687