Product Details | GRAPHICAL FIRING SCALE

1220-00-789-2985 A device designed in the form of a slide rule, having one or more scales of varying ranges, on either surface, and a plastic cursor with a matte to receive pencil markings of range correction. It is used with various types of ground and sky-sweeper weapons to determine quadrant elevation, angle of sight, or drift, and to calculate the trajectory of a projectile in relation to a target. It may contain scales for yards to meters conversion and gage points which are used in conjunction with the cursor and range scale to convert data given in meters to yards. Scales may be in mils for determining high angle fire, time of flight, deflection shift, and the like.

Part Alternates: 8213840, 1220-00-789-2985, 00-789-2985, 1220007892985, 007892985

Fire Control Equipment | Fire Control Computing Sights and Devices

Supply Group (FSG) NSN Assign. NIIN
12 01 JAN 1962 00-789-2985

Cross Reference | NSN 1220-00-789-2985

Part Number Cage Code Manufacturer
8213840 19200 US ARMY ARDEC RDECOM

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Technical Data | NSN 1220-00-789-2985

Characteristic Specifications
GENERAL CHARACTERISTICS ITEM DESCRIPTION RULE NO. 1,DOUBLE-FACE TYPE,RULE NO. 2,DOUBLE-FACE TYPE; HARDBOARD BODY; W/CURSOR,PLASTIC; SCALE DATA,SCALES GRADUATED IN METERS,25 TO 50 METER,27 TO 50 METER,30 TO 50 METER,500 TO 5800 METER,850 TO 3600 METER,2700 TO 7400 METER,3000 TO 14500 METER,3400 TO 9000 METER,6000 TO 10000 METER,7500 TO 14000 METER,RANGE OF SCALES,SCALES GRADUATED IN MILS,2 TO 15 MIL,2 TO 30 MIL,3 TO 7 MIL,3 TO 8 MIL,3 TO 11 MIL,3 TO 14 MIL,3 TO 15 MIL,3 TO 16 MIL,3 TO 27 MIL,3 TO 28 MIL,3 TO 38,4 TO 15 MIL,5 TO 13 MIL,5 TO 15 MIL,5 TO 18 MIL,5 TO 19 MIL,5 TO 50 MIL,7 TO 14 MIL,7 TO 35 MIL,10 TO 18 MIL,11 TO 30 MIL,14 TO 38 MIL,18 TO 67 MIL,28 TO 115 MIL,110 TO 550 MIL,110 TO 600 MIL,150 TO 600 MIL,200 TO 500 MIL,200 TO 700 MIL,900 TO 1150 MIL,900 TO 1160 MIL,RANGE OF SCALES,SCALES GRADUATED IN SECONDS,4.5 TO 23 SECONDS,7 TO 30 SECONDS,10 TO 34 SECONDS,11 TO 35 SECONDS,17 TO 35 SECONDS,20 TO 55 SECONDS,30 TO 37 SECONDS,35 TO 41 SECONDS,40 TO 47 SECONDS,45 TO 53 SECONDS,50 TO 60 SECONDS,56 TO 68 SECOND
MANUFACTURERS CODE 19200
DESIGN CONTROL REFERENCE 8213840

Restrictions/Controls & Freight Information | NSN 1220-00-789-2985

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 058260 RULERS RULES/DIMENSION SCALES
Less than car load rating D 200
Less than truck load rating D 200.0
Water commodity Code 653 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity S Office, School, and Household Supplies/Equipment including Office Machines, Furniture/Stationary, Films, Synthetic/Special Training Films, Non-Hazardous Household Cleaning Products, Non-Hazardous Personal Hygiene Products, etc.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable