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 5960-01-481-3722
NSN 5965-01-104-5102
NSN 6240-01-449-1387
NSN 7035-01-411-6062
NSN 6150-01-253-5778
NSN 5965-01-414-6414
NSN 6650-01-393-7655
NSN 6105-00-427-9615
NSN 5999-01-646-0792
NSN 6620-00-862-5567
NSN 5996-01-275-5712
NSN 5915-01-557-5332