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 5915-00-240-2712
NSN 5925-00-081-9135
NSN 6110-01-615-9705
NSN 5935-00-888-9606
NSN 5925-01-593-5431
NSN 5915-00-456-0873
NSN 6110-01-315-4336
NSN 5998-00-225-6887
NSN 5935-01-058-3214
NSN 6650-01-085-2388
NSN 2925-01-359-9818
NSN 6135-00-816-6204