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 5835-01-157-5886
NSN 4140-01-558-8942
NSN 5905-01-134-2706
NSN 5935-01-146-4851
NSN 4140-01-350-3277
NSN 4140-01-610-6649
NSN 5945-01-024-0368
NSN 5990-01-011-8022
NSN 5996-01-414-6361
NSN 6110-00-297-5768
NSN 5905-01-532-8953
NSN 5895-00-698-1650