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 5985-00-277-4230
NSN 6105-00-082-1945
NSN 6620-01-590-6283
NSN 6110-01-043-8291
NSN 5835-01-163-4215
NSN 6130-00-288-1886
NSN 5835-00-830-6416
NSN 5920-01-462-0055
NSN 6105-00-181-0678
NSN 5835-01-155-0786
NSN 2925-01-157-9204
NSN 6105-00-578-0865