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 5985-01-037-5808
NSN 7035-01-468-6532
NSN 6110-01-337-0223
NSN 6610-00-087-2434
NSN 5965-01-241-0553
NSN 5960-01-011-4395
NSN 6650-00-424-7239
NSN 5945-01-396-0240
NSN 5930-01-195-8076
NSN 6135-01-377-5729
NSN 6150-00-452-1086
NSN 6145-00-213-6807