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 6220-01-442-8825
NSN 6145-00-100-4358
NSN 5985-00-789-9869
NSN 6130-00-358-4320
NSN 5998-01-252-8803
NSN 6110-00-237-3788
NSN 6110-01-580-5446
NSN 5835-01-241-1090
NSN 5895-00-473-6056
NSN 5915-01-084-2548
NSN 5930-01-043-4106
NSN 6145-01-386-4299