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 5855-01-523-1177
NSN 6145-01-169-1683
NSN 6145-00-062-7897
NSN 5925-00-925-2164
NSN 5996-00-115-1188
NSN 7035-01-555-5260
NSN 6220-01-308-0414
NSN 5895-01-215-2791
NSN 6320-01-538-3793
NSN 6620-00-572-8787
NSN 5910-01-171-6537
NSN 6135-01-231-4809