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 6650-01-279-3893
NSN 5996-01-523-3834
NSN 5920-00-960-7614
NSN 5996-01-062-0807
NSN 6130-00-466-0374
NSN 5945-01-013-6466
NSN 6610-00-331-3460
NSN 5935-01-434-7934
NSN 6620-00-992-5876
NSN 6685-00-300-3653
NSN 6130-00-435-6995
NSN 5925-01-152-6988