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 6620-00-270-3275
NSN 5965-00-549-0220
NSN 5999-01-435-4607
NSN 5910-01-399-1592
NSN 5998-00-312-5674
NSN 5925-01-598-7114
NSN 5975-01-214-2735
NSN 5910-00-062-0183
NSN 7035-01-538-1658
NSN 6320-01-285-1922
NSN 5935-01-169-6045
NSN 6320-01-380-0561