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 5950-01-173-2935
NSN 5985-00-223-7298
NSN 5895-00-288-5878
NSN 5985-00-942-0500
NSN 2925-00-439-0916
NSN 6105-01-599-1833
NSN 5960-01-170-4057
NSN 6320-01-377-5701
NSN 5999-01-324-4904
NSN 5998-00-540-9571
NSN 6220-00-913-4465
NSN 5915-01-581-3145