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 6105-00-790-5531
NSN 5925-01-214-5969
NSN 6650-01-461-9220
NSN 5965-00-478-3442
NSN 6650-00-244-5648
NSN 6650-00-161-4122
NSN 6645-01-252-6708
NSN 6320-01-381-7023
NSN 6620-01-235-3752
NSN 4140-01-414-0675
NSN 5950-01-437-4195
NSN 6135-01-027-7543