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 5935-01-645-3857
NSN 6620-01-064-0366
NSN 6105-01-634-0322
NSN 5945-01-420-3443
NSN 6220-00-922-8241
NSN 5930-01-366-6230
NSN 6650-00-061-2232
NSN 5895-01-087-3989
NSN 5960-01-084-7379
NSN 5930-00-578-2000
NSN 6150-01-361-2228
NSN 5905-01-288-4768