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 5910-01-295-5110
NSN 5835-01-182-1966
NSN 7035-01-423-8343
NSN 5930-00-903-3424
NSN 6650-00-361-8222
NSN 7035-00-756-4374
NSN 5935-00-412-4130
NSN 5935-00-849-6480
NSN 4140-01-634-0330
NSN 6145-01-564-9204
NSN 5920-01-313-3892
NSN 5920-00-199-9514