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 5985-00-814-0246
NSN 5835-01-602-0311
NSN 5915-00-175-8657
NSN 6650-00-061-2232
NSN 6145-01-467-1797
NSN 5930-01-256-9629
NSN 6650-01-551-6866
NSN 5920-00-451-6847
NSN 6240-01-387-0904
NSN 5950-01-263-1728
NSN 6135-01-526-3227
NSN 5910-00-112-4543