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 6135-00-557-0174
NSN 5945-00-633-6843
NSN 6685-01-227-3701
NSN 5965-01-553-2276
NSN 6645-00-716-4615
NSN 5996-01-646-2851
NSN 5855-00-106-1640
NSN 6105-01-055-7436
NSN 6220-01-428-3960
NSN 6240-00-244-0483
NSN 6650-01-353-4809
NSN 5895-01-347-3605