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 5915-01-243-9192
NSN 5950-00-938-6409
NSN 5999-00-058-2684
NSN 5915-00-645-3453
NSN 5965-01-408-6218
NSN 5855-01-042-7990
NSN 5895-01-524-3129
NSN 4140-01-276-0020
NSN 5998-01-161-5751
NSN 6135-01-371-9209
NSN 5975-01-447-2387
NSN 7035-01-220-6392