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 5998-00-445-8027
NSN 6220-01-157-4937
NSN 6650-01-433-3056
NSN 6105-01-328-6473
NSN 5910-01-380-3736
NSN 6685-00-801-0036
NSN 6620-01-230-8064
NSN 6620-01-423-7300
NSN 5950-01-506-1086
NSN 5905-01-373-6285
NSN 6135-01-350-2932
NSN 6220-01-199-4146