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 6150-00-342-5058
NSN 6650-01-412-1040
NSN 5935-00-426-2515
NSN 5965-00-080-2045
NSN 6650-01-503-1144
NSN 2925-01-072-7101
NSN 6610-01-550-2368
NSN 6105-01-334-3266
NSN 5835-01-363-4527
NSN 5895-00-705-9156
NSN 5945-01-119-8173
NSN 5925-00-900-1904