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 6610-01-034-5226
NSN 5915-01-513-0447
NSN 5905-01-237-0519
NSN 6650-00-958-7408
NSN 7035-00-188-6674
NSN 6150-01-186-2904
NSN 6645-01-160-7707
NSN 6135-01-432-2785
NSN 5945-00-520-3482
NSN 5855-01-425-1330
NSN 7035-01-187-6002
NSN 6150-00-681-2898