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 5905-01-169-4670
NSN 5930-01-257-9517
NSN 5910-00-539-7904
NSN 5998-01-176-0576
NSN 6240-01-409-1823
NSN 5965-01-584-4623
NSN 5975-01-625-9887
NSN 5920-01-086-7219
NSN 5920-00-172-9232
NSN 5945-00-618-0199
NSN 5915-01-227-4573
NSN 5945-01-338-1201