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 5935-00-244-8219
NSN 4140-01-138-4889
NSN 5996-01-586-0162
NSN 5998-01-328-9343
NSN 6145-01-230-3595
NSN 5835-01-546-2008
NSN 5999-00-592-7570
NSN 5905-00-248-5348
NSN 6135-01-238-2878
NSN 5935-01-481-3488
NSN 5895-01-058-0029
NSN 5915-01-540-4491