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 6135-01-277-7907
NSN 5895-01-076-4204
NSN 5998-01-395-1591
NSN 6610-01-290-2627
NSN 5965-00-170-8676
NSN 6620-01-127-0049
NSN 5935-01-403-2844
NSN 5930-01-381-2523
NSN 5945-01-125-5798
NSN 6650-01-189-4433
NSN 6105-00-076-4028
NSN 6320-00-456-2092