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 6110-01-526-0516
NSN 5855-01-188-4049
NSN 5999-00-253-2192
NSN 5990-00-381-6113
NSN 5945-01-111-0962
NSN 5930-01-297-1954
NSN 7035-01-209-6325
NSN 6685-01-542-3361
NSN 6220-00-682-8292
NSN 5998-01-634-0604
NSN 5965-00-068-4812
NSN 5999-00-959-7144