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 5910-01-502-6614
NSN 6650-00-466-1697
NSN 5985-00-156-0777
NSN 5996-00-278-5193
NSN 5930-00-952-8589
NSN 5855-01-421-7691
NSN 6645-01-518-7287
NSN 6135-01-439-8669
NSN 6105-00-229-0505
NSN 5925-01-265-4679
NSN 5920-00-802-0666
NSN 6130-01-568-6687