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 6150-00-827-4861
NSN 5965-01-282-3181
NSN 5915-00-076-3738
NSN 6650-01-139-0022
NSN 5965-01-463-8176
NSN 6320-00-174-1362
NSN 5895-01-079-1739
NSN 5999-01-409-2834
NSN 6110-01-528-7744
NSN 6650-01-381-2972
NSN 5998-00-205-2951
NSN 6645-01-481-4418