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 5835-01-412-0344
NSN 5960-01-525-1690
NSN 6110-01-604-8811
NSN 5945-01-004-9646
NSN 5835-00-148-9719
NSN 2925-01-461-4347
NSN 4140-00-330-5841
NSN 6320-00-070-4544
NSN 5915-01-595-2266
NSN 6620-01-546-4942
NSN 5855-01-035-2866
NSN 5835-01-268-1924