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 5935-00-192-9618
NSN 6135-01-422-0140
NSN 6220-00-996-2345
NSN 5975-01-398-0486
NSN 5999-00-929-7549
NSN 6320-01-476-7476
NSN 6130-01-504-6350
NSN 5950-01-527-3985
NSN 5920-01-219-5298
NSN 6620-00-611-9935
NSN 6320-01-414-9801
NSN 5925-01-217-6009