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 7035-01-407-4079
NSN 6320-00-831-2227
NSN 6220-01-215-6983
NSN 5960-01-314-7757
NSN 5920-00-933-8972
NSN 5895-01-423-0813
NSN 2925-01-089-4176
NSN 5998-00-945-6505
NSN 6645-01-092-4733
NSN 5935-01-445-9762
NSN 5945-01-547-1728
NSN 5855-01-529-5567