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 5996-00-446-3784
NSN 6650-00-211-6302
NSN 5920-01-592-3416
NSN 5998-01-081-7355
NSN 6620-00-172-6127
NSN 5930-00-661-2280
NSN 5996-01-065-0939
NSN 5965-01-364-0829
NSN 6645-00-736-0476
NSN 2925-01-113-6904
NSN 6620-01-186-9922
NSN 6105-01-539-1990