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 5895-01-453-9218
NSN 6220-00-157-5009
NSN 6320-01-039-5467
NSN 6645-01-276-1029
NSN 5895-01-304-7160
NSN 5920-00-319-0509
NSN 5950-01-415-5752
NSN 7035-01-422-9483
NSN 5950-00-349-1544
NSN 5935-01-582-1551
NSN 5945-01-098-7262
NSN 6240-01-429-7830