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 5915-00-104-3119
NSN 5945-01-355-1460
NSN 5935-01-562-5826
NSN 5998-01-500-1914
NSN 2925-01-441-8958
NSN 5935-00-909-8790
NSN 5965-01-260-2547
NSN 6135-01-426-8282
NSN 6645-01-449-5457
NSN 6650-01-048-5293
NSN 5925-01-618-7947
NSN 5925-01-407-3083