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 5855-01-472-2484
NSN 7035-01-115-8996
NSN 5895-01-084-7500
NSN 5985-01-473-6108
NSN 6620-00-698-6700
NSN 6110-00-317-3538
NSN 5925-01-445-6112
NSN 6645-00-583-0066
NSN 5935-00-809-3155
NSN 4140-01-470-7018
NSN 5960-01-342-1961
NSN 6320-00-925-0558