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 6105-00-591-8087
NSN 5835-01-553-6772
NSN 5945-00-155-4290
NSN 5935-00-223-9595
NSN 6150-00-754-6444
NSN 6220-01-634-0660
NSN 6320-01-246-4390
NSN 5985-01-429-8699
NSN 5999-00-108-1137
NSN 5835-00-740-0246
NSN 5985-00-156-9287
NSN 6620-01-368-2723