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 5915-01-243-9192
NSN 6620-01-241-4881
NSN 6240-01-152-2662
NSN 6105-01-029-1140
NSN 6610-01-425-1523
NSN 2925-01-422-1542
NSN 5998-00-549-5513
NSN 7035-00-631-3782
NSN 5975-01-265-3420
NSN 5915-01-487-6454
NSN 6240-00-541-7032
NSN 5855-01-136-9532