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 5930-00-531-0541
NSN 5835-01-412-0344
NSN 6240-01-516-8393
NSN 6320-01-648-5538
NSN 6620-01-441-7896
NSN 6135-01-056-4609
NSN 4140-01-067-8986
NSN 5960-00-215-5884
NSN 5965-01-501-5638
NSN 6645-01-034-0469
NSN 6135-01-579-3534
NSN 5905-01-388-7572