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 5835-01-224-2792
NSN 5895-00-191-2146
NSN 5935-01-634-0668
NSN 6320-01-233-5798
NSN 6130-01-352-3548
NSN 5930-01-130-5389
NSN 5960-00-938-2829
NSN 2925-00-878-2196
NSN 5910-01-237-5752
NSN 5835-01-360-2657
NSN 7035-01-166-7857
NSN 6645-01-140-6184