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 5895-01-205-8963
NSN 5990-00-583-9920
NSN 6145-01-412-6747
NSN 6105-01-227-0388
NSN 4140-01-285-6457
NSN 5855-00-455-6070
NSN 6130-00-799-3536
NSN 5895-01-595-5402
NSN 6610-00-147-3187
NSN 5835-01-104-5497
NSN 5915-01-557-3392
NSN 5998-01-544-8000