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 5895-01-581-2242
NSN 6645-00-189-7075
NSN 5945-01-565-8436
NSN 6650-01-237-4689
NSN 5945-00-529-0409
NSN 5960-01-214-0951
NSN 5905-01-605-4128
NSN 5895-01-190-0938
NSN 6320-01-495-0512
NSN 5965-00-775-6496
NSN 5930-01-215-5667
NSN 5960-01-375-1905