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 6105-01-321-7466
NSN 6240-01-454-1603
NSN 6610-01-420-9111
NSN 5855-00-436-3852
NSN 5965-01-252-8701
NSN 5990-00-032-6334
NSN 6110-01-101-8338
NSN 6150-01-442-3719
NSN 6110-00-359-5571
NSN 6685-00-203-2389
NSN 5910-00-104-7260
NSN 6220-01-523-0869