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 6145-00-822-2379
NSN 5915-00-287-5049
NSN 5930-00-616-1861
NSN 5996-01-437-1186
NSN 6610-01-343-7614
NSN 7035-01-145-5059
NSN 6240-01-606-1850
NSN 6620-00-482-1073
NSN 6110-01-299-8870
NSN 5960-00-351-4821
NSN 5945-00-142-9690
NSN 5920-01-569-2896