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 5975-01-165-4126
NSN 6150-01-343-3316
NSN 5999-01-290-4850
NSN 6645-01-484-9847
NSN 6610-00-015-2020
NSN 6105-00-956-9442
NSN 5990-01-232-9008
NSN 5999-01-229-7731
NSN 7035-01-633-9537
NSN 5915-00-828-5105
NSN 5985-01-234-2973
NSN 5835-01-399-5820