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 5945-00-984-7120
NSN 5925-01-148-1186
NSN 5930-00-376-9991
NSN 5960-01-160-3437
NSN 5930-01-530-5683
NSN 5855-00-906-5386
NSN 5965-00-893-2509
NSN 5920-01-316-8286
NSN 5930-01-449-0039
NSN 6130-01-464-6144
NSN 6110-01-545-4911
NSN 6110-01-437-2853