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 6130-01-168-7602
NSN 6650-01-066-0420
NSN 6320-00-894-1644
NSN 5835-01-027-3931
NSN 6240-01-050-8306
NSN 5855-00-106-1640
NSN 5920-01-598-5172
NSN 5915-01-515-0156
NSN 6320-00-593-0379
NSN 6240-01-508-4146
NSN 5945-01-265-0990
NSN 5835-00-227-7909