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 6220-01-023-0394
NSN 5915-01-365-2415
NSN 5965-01-143-9577
NSN 5985-01-003-9732
NSN 5930-01-048-3321
NSN 5910-01-605-3393
NSN 5990-01-013-8464
NSN 6220-01-532-1322
NSN 5915-00-420-1557
NSN 6220-01-386-3810
NSN 5835-01-296-8146
NSN 5975-01-281-8347