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 5965-01-341-6545
NSN 6130-00-583-0431
NSN 5985-00-967-2011
NSN 5975-01-631-6032
NSN 5920-01-559-4725
NSN 5910-00-222-7047
NSN 6240-00-497-2176
NSN 5920-00-727-9093
NSN 6150-01-434-8512
NSN 5960-01-226-0342
NSN 5920-01-203-6952
NSN 5925-01-461-2107