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 6130-00-264-6078
NSN 5975-01-095-2610
NSN 5835-01-247-2634
NSN 5915-00-983-4998
NSN 5975-00-223-1853
NSN 6620-01-229-5706
NSN 5855-00-337-3679
NSN 6150-00-549-9779
NSN 5960-01-350-2925
NSN 5835-00-841-2650
NSN 5935-01-412-1456
NSN 6610-00-878-9442