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 5915-01-077-2208
NSN 5999-01-545-3682
NSN 5996-00-553-7348
NSN 5985-01-613-2780
NSN 5965-00-933-4050
NSN 5998-00-412-8618
NSN 5910-01-341-6736
NSN 6240-01-604-7896
NSN 6130-00-983-5539
NSN 5996-00-771-8802
NSN 5965-00-888-2643
NSN 4140-01-463-0172