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 5910-01-359-3284
NSN 6145-00-959-7610
NSN 6610-00-159-1110
NSN 5895-00-466-3100
NSN 5945-01-068-4471
NSN 5935-00-949-1130
NSN 5945-01-159-7990
NSN 6620-00-618-9311
NSN 6620-01-598-2271
NSN 6620-00-557-0950
NSN 2925-01-467-0736
NSN 6620-01-553-6458