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 5895-01-113-3279
NSN 5965-00-729-6835
NSN 5930-01-196-6137
NSN 5835-00-835-7838
NSN 5998-01-021-3700
NSN 6135-01-351-1131
NSN 6610-00-726-0247
NSN 6685-01-419-8934
NSN 5999-01-142-7151
NSN 5925-00-523-1621
NSN 5985-01-476-0819
NSN 7035-00-360-2008