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 5895-00-788-0451
NSN 6320-01-019-1028
NSN 2925-00-925-0545
NSN 6220-01-170-6913
NSN 5999-01-265-0349
NSN 6320-00-593-0379
NSN 2925-01-322-9780
NSN 2925-00-231-8041
NSN 5950-00-228-2887
NSN 6110-01-526-0516
NSN 5915-00-441-5849
NSN 5945-01-442-2347