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 2925-01-434-6945
NSN 5935-00-037-1862
NSN 4140-00-492-2468
NSN 5990-01-027-1869
NSN 6135-01-277-7907
NSN 5950-00-374-2322
NSN 7035-00-358-0470
NSN 6685-00-764-2092
NSN 6145-01-145-9889
NSN 5975-01-030-0555
NSN 6320-00-682-3448
NSN 5935-00-279-6952