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 5985-00-974-5393
NSN 6650-01-651-6221
NSN 5998-01-037-2053
NSN 5998-01-065-1606
NSN 5915-00-339-3015
NSN 5920-00-362-1376
NSN 5915-00-888-1744
NSN 5998-01-014-5864
NSN 5975-00-308-5138
NSN 5855-01-398-0090
NSN 5855-01-475-8335
NSN 5835-01-297-1909