Part Details | GRAPHICAL FIRING SCALE
1220-00-078-1988 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.
Alternate Parts: 10556427, 1220-00-078-1988, 00-078-1988, 1220000781988, 000781988
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | DEC 15, 1971 | 00-078-1988 | 21860 ( SCALE, GRAPHICAL FIRING ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1220-00-078-1988
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 10556427 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1220-00-078-1988
| Characteristic | Specifications |
|---|---|
| GENERAL CHARACTERISTICS ITEM DESCRIPTION | C/OSCALE,GRAPHICAL FIRING 4.2 IN MORTAR FOR ROUNDS M328A1-WP AND M329A1-HE P/N 10556428 AND CASE,CARRYING P/N10549929 |
| END ITEM IDENTIFICATION | MORTAR,4.2 IN,1015-00-840-1840 |