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 5915-01-559-8039
NSN 6240-01-345-7266
NSN 6145-01-396-5647
NSN 5960-01-014-1595
NSN 5999-00-661-0954
NSN 5910-00-071-5682
NSN 6145-01-548-2967
NSN 5999-01-329-9658
NSN 5950-01-347-8401
NSN 7035-00-481-5182
NSN 6320-00-405-2348
NSN 5915-00-625-2285