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 6620-01-168-2557
NSN 5835-01-412-6901
NSN 5990-01-443-2931
NSN 5910-00-243-3060
NSN 6135-00-228-8140
NSN 4140-00-423-6663
NSN 5950-01-246-8342
NSN 5990-01-432-4984
NSN 5998-01-199-6468
NSN 7035-00-968-4848
NSN 5915-00-499-9054
NSN 5905-01-645-2424