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 5835-01-324-3967
NSN 6130-01-312-1545
NSN 6240-00-107-8192
NSN 5915-01-365-1719
NSN 6685-01-610-7191
NSN 6105-00-331-7680
NSN 5915-00-910-5739
NSN 6220-00-156-0860
NSN 5920-01-168-3232
NSN 5895-01-054-3799
NSN 6320-01-317-3663
NSN 5975-00-578-9255