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 6620-01-548-7441
NSN 5965-01-498-8113
NSN 7035-00-797-2635
NSN 5985-00-526-3469
NSN 5905-00-448-2408
NSN 7035-00-727-4068
NSN 6645-01-495-5553
NSN 5985-01-542-9179
NSN 6620-01-333-2513
NSN 5985-01-383-0587
NSN 5835-00-943-2763
NSN 2925-01-533-7904