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 5945-01-029-2516
NSN 6105-00-430-2378
NSN 5905-01-586-0269
NSN 5975-01-004-5850
NSN 5915-00-998-1350
NSN 6650-01-420-0233
NSN 5945-00-453-7802
NSN 5975-01-620-4768
NSN 5855-00-361-0167
NSN 6650-01-378-6075
NSN 5925-00-262-6087
NSN 5930-00-999-4401