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 5990-01-510-4699
NSN 6610-01-476-7412
NSN 5855-00-610-4052
NSN 5930-01-195-6786
NSN 6650-01-420-9247
NSN 6610-01-592-1551
NSN 5835-01-619-6268
NSN 6650-01-039-9340
NSN 5965-01-487-4479
NSN 5905-01-340-2182
NSN 5855-00-110-9341
NSN 5965-01-293-7031