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 5945-01-479-1235
NSN 5945-00-021-3575
NSN 5935-00-116-8254
NSN 5996-00-482-1170
NSN 6645-01-527-8109
NSN 6645-00-115-6657
NSN 5925-00-192-9630
NSN 5920-00-730-8541
NSN 5895-01-642-2205
NSN 6685-00-008-7979
NSN 5960-00-629-8773
NSN 5895-00-053-2661