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 6220-01-582-5044
NSN 7035-01-381-6185
NSN 5935-01-433-2103
NSN 5998-00-972-9130
NSN 5998-01-421-2485
NSN 6130-00-543-1302
NSN 7035-00-155-9513
NSN 5915-01-557-5332
NSN 6620-01-244-3427
NSN 6320-00-688-9983
NSN 6620-01-457-9476
NSN 6110-01-390-7297