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 5999-01-119-2983
NSN 5945-01-323-3877
NSN 6220-01-319-0008
NSN 5960-00-183-8016
NSN 6135-01-531-1413
NSN 5920-01-065-0395
NSN 5965-01-434-8759
NSN 6220-00-271-9553
NSN 5915-01-391-3744
NSN 5855-01-497-0467
NSN 5965-01-424-3649
NSN 5950-00-181-9285