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 6105-01-273-3938
NSN 5905-00-236-1367
NSN 5999-01-449-1345
NSN 5975-00-924-1461
NSN 5930-01-530-6291
NSN 6645-01-496-0073
NSN 6145-00-903-4619
NSN 5915-01-062-8673
NSN 6135-01-528-6896
NSN 6240-01-300-8528
NSN 6320-01-607-1491
NSN 5835-00-930-8500