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 6130-00-205-1714
NSN 5998-01-530-7628
NSN 5895-01-017-7574
NSN 6320-01-237-9746
NSN 5920-01-171-0324
NSN 4140-01-520-5846
NSN 5960-00-690-9659
NSN 5935-01-608-3840
NSN 6610-01-032-7585
NSN 6320-01-462-3555
NSN 2925-00-925-0545
NSN 6220-01-224-6415