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 5950-00-288-5994
NSN 5975-01-276-0606
NSN 4140-00-660-8699
NSN 6685-01-334-5274
NSN 6130-00-289-7050
NSN 6320-01-029-2196
NSN 5935-00-255-2186
NSN 5930-00-153-1400
NSN 6320-01-512-2031
NSN 5996-01-230-2724
NSN 5835-00-034-4976
NSN 5950-01-457-7492