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 5945-01-023-7993
NSN 5895-00-486-0191
NSN 5855-01-511-0995
NSN 7035-00-193-2269
NSN 5950-01-403-2852
NSN 6130-00-456-0206
NSN 6240-00-847-8091
NSN 5960-01-530-0581
NSN 6620-01-305-6562
NSN 6620-00-145-8232
NSN 5835-01-470-3337
NSN 5920-00-467-9274