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 6105-01-570-4807
NSN 6150-01-206-8651
NSN 6135-00-152-8729
NSN 5915-01-388-2911
NSN 6685-01-046-6768
NSN 6645-01-607-5999
NSN 6645-00-244-0359
NSN 5925-01-578-8889
NSN 6220-01-154-2710
NSN 6135-01-231-4809
NSN 6610-00-336-2404
NSN 5895-00-514-2905