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 5925-00-843-0315
NSN 5950-00-385-8906
NSN 6135-01-010-0891
NSN 5835-00-016-3671
NSN 5935-01-125-4991
NSN 5895-01-648-4197
NSN 5915-01-318-5151
NSN 6130-01-462-5428
NSN 5935-01-469-8552
NSN 5945-01-566-6126
NSN 5895-01-523-2659
NSN 5950-00-965-6995