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 6620-01-425-8257
NSN 5915-01-147-6098
NSN 6150-00-539-9812
NSN 6650-01-490-0281
NSN 6135-01-265-1384
NSN 5835-00-422-1441
NSN 5935-00-716-8188
NSN 5935-01-499-9122
NSN 5915-01-577-2177
NSN 5960-01-481-8051
NSN 6110-00-350-6192
NSN 5915-01-395-1483