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 5945-00-060-2885
NSN 4140-01-484-0242
NSN 6110-00-969-4030
NSN 5960-01-265-4487
NSN 5855-01-375-6690
NSN 5935-01-160-0148
NSN 5930-01-053-6263
NSN 6220-01-220-8088
NSN 5945-00-931-2161
NSN 5915-00-155-4766
NSN 7035-01-129-7834
NSN 6620-01-063-6289