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 5910-01-391-6300
NSN 6650-01-633-9147
NSN 5990-01-544-0364
NSN 5960-00-285-1001
NSN 5935-01-364-1955
NSN 6320-01-335-8336
NSN 5895-00-136-6725
NSN 5965-01-349-7246
NSN 6110-01-489-5482
NSN 5945-01-509-6668
NSN 6135-01-177-3552
NSN 5835-00-244-4956