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 5930-01-634-0659
NSN 6135-00-947-7091
NSN 6105-01-502-1528
NSN 6645-01-322-4413
NSN 2925-01-448-2880
NSN 5998-01-391-1179
NSN 5950-00-132-6427
NSN 6110-01-174-9569
NSN 6150-00-065-2656
NSN 5999-01-177-4099
NSN 5950-01-123-9468
NSN 5930-01-283-1406