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 5990-01-365-6016
NSN 6150-00-836-0793
NSN 5935-01-350-4607
NSN 5945-00-117-3520
NSN 5920-01-272-1354
NSN 7035-01-135-0050
NSN 5960-01-260-0770
NSN 5945-00-866-0189
NSN 5910-01-442-5014
NSN 5915-01-209-6449
NSN 5910-01-553-2786
NSN 5910-00-854-6896