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 5910-01-324-4093
NSN 6320-00-004-9158
NSN 5960-01-119-4609
NSN 5998-01-634-0604
NSN 5895-01-286-2462
NSN 5930-01-595-9158
NSN 2925-00-806-7972
NSN 5985-01-502-9110
NSN 5945-00-257-2073
NSN 6145-01-346-3931
NSN 6220-01-292-7841
NSN 2925-01-492-5342