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 5999-01-271-3226
NSN 5950-01-366-5474
NSN 6650-01-091-4241
NSN 5910-00-340-5375
NSN 6650-01-256-9151
NSN 6650-00-262-2324
NSN 5935-01-660-6676
NSN 6685-01-540-0581
NSN 5835-01-367-4330
NSN 6620-01-567-4193
NSN 5855-01-364-1005
NSN 5965-01-350-5105