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 6220-01-365-1847
NSN 5930-00-226-4228
NSN 5960-01-486-3060
NSN 5998-00-377-2673
NSN 6645-01-433-1398
NSN 6130-01-593-4029
NSN 5998-01-242-9372
NSN 6145-00-558-1834
NSN 6610-00-855-7607
NSN 5999-01-594-5709
NSN 5998-01-383-5888
NSN 5965-01-504-8199