National Stock Number
1220-00-670-3050
National Stock Number (NSN) 1220-00-670-3050, or NIIN 006703050, (plotting board,sound ranging,fir) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.
There are no manufacturer part numbers associated to this NSN.
This part number has not been procured by the US Government in over 5 years.
This NSN is assigned to Item Name Code (INC) 21789. [AN ITEM USED TO DETERMINE THE LOCATION OF ENEMY GUNS BY PLOTTING THE DIFFERENCE IN TIME AT WHICH THE SOUND OF THE GUN REACHES EACH OF SEVERAL MICROPHONE STATIONS. IT MAY ALSO BE USED FOR ADJUSTMENTS OF GUN AND HOWITZER FIRE TO COMPENSATE FOR THE TRAJECTORY OF THE PROJECTILE. EXCLUDES:SOUND RANGING SET AND SOUND MEASURING SET.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1220006703050 does not contain precious metals.
This NSN is associated to Schedule B 9803200000: military equipments not identified by kind. The Schedule B End Use is listed as military apparel and footwear.
This information was last updated on Jul 01, 2025.