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 6110-00-196-8813
NSN 6105-01-106-6355
NSN 5925-01-508-6579
NSN 6145-01-009-0081
NSN 5935-01-272-2294
NSN 5935-01-357-8395
NSN 5910-01-036-4423
NSN 5855-01-406-4821
NSN 6320-01-157-9076
NSN 5915-00-128-8130
NSN 6240-01-526-9660
NSN 5945-00-549-4980