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 5925-01-047-5189
NSN 5920-00-434-4230
NSN 6110-01-547-9494
NSN 6105-00-483-1370
NSN 5905-01-464-8197
NSN 6105-01-474-5246
NSN 6105-01-514-7310
NSN 5835-01-180-1400
NSN 6650-00-945-9105
NSN 5965-00-513-1352
NSN 6145-00-840-6458
NSN 7035-01-141-3041