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 5835-01-085-5487
NSN 6150-00-619-1711
NSN 6135-01-604-8739
NSN 5930-01-511-0419
NSN 6110-00-452-0448
NSN 6620-01-063-6289
NSN 6150-01-464-0053
NSN 5920-01-094-4327
NSN 6135-00-170-8819
NSN 6220-01-055-5227
NSN 5920-00-752-3081
NSN 5975-01-288-8295