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 6240-00-281-8417
NSN 5990-01-372-6047
NSN 6135-01-390-7364
NSN 6620-00-740-3699
NSN 6620-01-102-0008
NSN 5920-00-563-3161
NSN 6240-00-105-6341
NSN 5915-01-255-3093
NSN 5920-00-050-0714
NSN 5895-01-399-7914
NSN 6650-01-406-4959
NSN 5999-00-070-9863