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 5835-01-268-1924
NSN 6150-01-462-1824
NSN 4140-01-603-7259
NSN 6650-00-820-4577
NSN 5925-01-246-3703
NSN 6110-00-353-0139
NSN 5998-01-501-5917
NSN 5835-00-155-1379
NSN 5925-00-700-5637
NSN 5990-01-642-5748
NSN 6610-00-100-1195
NSN 6130-01-041-1202