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 6320-00-925-0558
NSN 5965-01-165-9787
NSN 6620-00-811-7614
NSN 6650-01-412-1040
NSN 6240-00-423-9575
NSN 5920-00-276-8657
NSN 6240-01-295-5159
NSN 6240-00-717-0844
NSN 5975-01-355-0607
NSN 5935-00-452-2221
NSN 5920-00-199-4050
NSN 6220-01-218-5164