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 5915-00-597-0038
NSN 5895-01-516-8826
NSN 5835-01-485-0210
NSN 5985-00-598-4707
NSN 6650-01-155-8182
NSN 5920-01-246-2967
NSN 6220-00-495-5116
NSN 5945-01-125-2996
NSN 7035-01-213-5590
NSN 5930-00-326-5024
NSN 5945-00-618-0199
NSN 6130-01-475-1676