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 6645-01-437-9017
NSN 6130-00-134-3674
NSN 5960-01-010-1497
NSN 6105-01-202-5744
NSN 5975-00-982-7822
NSN 4140-00-523-2980
NSN 5935-01-367-2245
NSN 5915-00-941-0339
NSN 5930-01-361-6345
NSN 2925-01-197-7864
NSN 5835-00-494-8419
NSN 5895-01-501-5548