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 6150-01-457-4618
NSN 5960-01-548-4896
NSN 5965-01-480-8986
NSN 5895-00-510-4847
NSN 5950-01-502-6378
NSN 5998-01-618-8668
NSN 6105-00-935-8736
NSN 7035-00-392-5417
NSN 6610-01-023-1918
NSN 6240-01-398-2887
NSN 6135-01-396-0704
NSN 6110-00-575-9795