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 6610-00-482-5746
NSN 5990-00-925-6614
NSN 5930-01-646-8359
NSN 6620-01-423-0833
NSN 5945-01-153-9314
NSN 5915-01-304-1239
NSN 5990-01-118-0151
NSN 5998-01-079-2815
NSN 4140-01-446-7249
NSN 5935-00-339-7538
NSN 5960-01-488-5817
NSN 6240-00-065-3703