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 5998-01-297-5848
NSN 6610-01-461-8180
NSN 5915-01-602-9324
NSN 6620-00-811-7614
NSN 5960-01-023-8037
NSN 4140-00-182-9158
NSN 6685-01-174-9574
NSN 5960-01-411-5899
NSN 6130-01-260-0156
NSN 4140-01-392-8068
NSN 5910-01-268-2250
NSN 6145-01-535-0693