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 5965-00-174-5792
NSN 5895-00-960-8526
NSN 5935-00-266-8506
NSN 5930-01-483-4018
NSN 5999-01-500-2107
NSN 5930-01-331-9894
NSN 5998-01-660-3426
NSN 5855-01-072-0410
NSN 5998-01-364-0243
NSN 4140-01-380-9648
NSN 5950-01-520-4445
NSN 2925-01-519-3221