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 6620-01-094-6549
NSN 6150-00-196-4387
NSN 5855-01-634-0259
NSN 5996-01-189-9480
NSN 5960-01-156-7469
NSN 6110-01-597-3080
NSN 6220-01-326-7204
NSN 5905-01-187-5745
NSN 6650-01-355-8109
NSN 6105-01-289-3804
NSN 5930-00-823-7797
NSN 5925-01-336-6380