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 5945-01-135-7850
NSN 6220-01-146-5152
NSN 5945-01-383-8377
NSN 6110-00-244-2308
NSN 5835-01-125-6676
NSN 6240-00-054-6540
NSN 6130-01-381-2969
NSN 6320-01-189-6891
NSN 5920-01-285-0391
NSN 7035-00-763-6180
NSN 5895-01-457-5244
NSN 6105-01-316-8248