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 5950-01-361-0346
NSN 5950-01-557-3312
NSN 5945-01-634-0588
NSN 2925-01-244-3016
NSN 5935-01-412-8664
NSN 5835-01-399-5820
NSN 5998-00-559-8618
NSN 5835-00-368-4182
NSN 6610-00-208-5318
NSN 6240-00-246-5060
NSN 5905-01-523-1620
NSN 5910-01-342-8347