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 6650-01-016-0406
NSN 7035-01-492-6799
NSN 6135-01-171-9299
NSN 6105-00-294-7431
NSN 6145-00-827-4958
NSN 5855-01-656-5921
NSN 5990-00-140-1159
NSN 6220-00-195-2061
NSN 6240-01-123-4998
NSN 5935-01-589-2854
NSN 5975-01-383-7391
NSN 5965-01-500-7168