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 5835-01-362-8367
NSN 6610-01-080-8064
NSN 6220-00-927-0543
NSN 5835-01-064-6024
NSN 5895-01-359-3266
NSN 5950-01-165-4050
NSN 5960-01-167-6689
NSN 6130-01-467-1348
NSN 4140-00-003-1936
NSN 6610-01-188-4107
NSN 6110-00-592-7474
NSN 6685-01-471-6378