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 5945-01-607-0482
NSN 5950-01-595-0207
NSN 6220-00-099-9192
NSN 5965-00-959-4910
NSN 6320-00-937-5625
NSN 5905-01-100-3802
NSN 6320-01-280-5091
NSN 6645-01-298-4662
NSN 6105-01-642-8827
NSN 5920-00-036-6108
NSN 5895-00-786-3438
NSN 6650-00-527-8822