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 6150-01-462-4945
NSN 6240-01-549-7138
NSN 6685-01-466-3185
NSN 5935-00-314-4509
NSN 5910-01-391-5009
NSN 6220-01-439-0999
NSN 6110-01-114-6798
NSN 6130-00-079-9342
NSN 2925-01-422-1542
NSN 6110-01-593-8570
NSN 6240-01-063-7685
NSN 5915-00-429-1986