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 5935-01-282-3433
NSN 6320-00-343-1798
NSN 6135-00-240-3200
NSN 6650-00-177-0983
NSN 5999-00-147-1153
NSN 7035-00-173-2281
NSN 6240-00-458-4662
NSN 5935-01-394-0188
NSN 7035-01-290-1447
NSN 6110-00-241-5499
NSN 6105-01-140-3017
NSN 5998-01-455-2154