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 5985-01-502-9782
NSN 5910-00-466-8022
NSN 5930-01-008-1486
NSN 7035-01-656-4132
NSN 6150-01-055-7545
NSN 6320-00-483-0451
NSN 5915-01-160-8175
NSN 6685-01-395-2057
NSN 5930-01-560-8676
NSN 6105-01-576-9638
NSN 6240-00-388-6479
NSN 5920-00-187-0260