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 6135-01-443-4484
NSN 6110-00-367-2427
NSN 5990-01-546-1649
NSN 6650-00-726-4242
NSN 6150-00-596-9253
NSN 6110-00-539-9543
NSN 6150-01-055-6068
NSN 5985-01-122-4985
NSN 6650-01-406-3086
NSN 5915-00-197-8601
NSN 6650-00-021-9555
NSN 6650-01-239-6241