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 7035-01-224-2183
NSN 6320-01-085-8845
NSN 6220-01-171-4738
NSN 5996-00-117-4189
NSN 5965-01-461-2850
NSN 5915-01-172-4148
NSN 5905-01-151-8106
NSN 5910-01-106-3261
NSN 6685-01-477-0261
NSN 5998-00-601-6406
NSN 5950-01-633-0212
NSN 5915-01-503-4246