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 5895-01-429-8160
NSN 5915-00-995-5983
NSN 5935-01-486-5372
NSN 6130-01-182-3036
NSN 5930-00-456-2279
NSN 5960-01-228-3943
NSN 5895-01-106-3312
NSN 5835-00-034-4976
NSN 2925-01-152-8618
NSN 5905-00-088-6426
NSN 5935-01-328-7148
NSN 2925-01-122-8881