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 6105-01-104-7856
NSN 6240-01-144-5898
NSN 5935-01-421-4575
NSN 6110-00-930-4818
NSN 5835-01-565-3411
NSN 6610-00-663-8798
NSN 6240-00-226-0462
NSN 5915-01-525-7641
NSN 5960-00-584-4553
NSN 5960-00-054-1987
NSN 5895-00-708-9312
NSN 5950-00-189-6692