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 5985-00-812-4549
NSN 6135-00-913-2062
NSN 6135-01-476-4697
NSN 6650-01-239-6241
NSN 5855-01-125-9167
NSN 5935-01-320-0513
NSN 6105-01-275-8967
NSN 6130-01-521-3034
NSN 5985-00-155-5991
NSN 6220-01-296-2567
NSN 5905-01-193-6249
NSN 6320-01-466-4175