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 6105-01-196-5444
NSN 6645-00-066-6868
NSN 6110-01-602-9353
NSN 5975-01-587-1075
NSN 5910-01-227-1939
NSN 6145-00-251-8593
NSN 6645-00-136-9451
NSN 6645-01-656-6416
NSN 5915-01-418-5632
NSN 5930-00-739-5275
NSN 6650-00-983-6722
NSN 6145-01-361-8985