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 5855-01-027-1571
NSN 5920-01-152-1949
NSN 7035-00-173-2281
NSN 5910-01-026-0386
NSN 5985-00-704-9268
NSN 5920-01-223-6251
NSN 5960-01-474-4843
NSN 5920-01-628-2866
NSN 5985-01-434-3584
NSN 6150-01-099-0614
NSN 5910-01-510-9454
NSN 5835-01-463-2334