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 6105-01-315-0052
NSN 2925-01-327-3069
NSN 5905-00-931-7398
NSN 5895-01-283-8901
NSN 5930-01-505-6751
NSN 6145-01-451-5112
NSN 6105-01-234-0208
NSN 5998-01-452-9261
NSN 5935-01-121-3228
NSN 6610-00-263-3076
NSN 5930-00-155-8119
NSN 5920-01-510-9921