NSN 1240-00-618-1390
Part Details | OPTICAL ELEMENT CELL
1240-00-618-1390 A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. Includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.
Alternate Parts: 6181390, 1240-00-618-1390, 00-618-1390, 1240006181390, 006181390
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1963 | 00-618-1390 | 21859 ( CELL, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-618-1390
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6181390 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-618-1390
| Characteristic | Specifications |
|---|---|
| THREAD LOCATION | EXTERNAL AND INTERNAL |
| THREAD SIZE | A2-7/16 IN.-24$$A2-5/16 IN.-32 |
| SCREW THREAD SERIES DESIGNATOR | UNS AND UNS |
| THREAD CLASS | A2A$$A2B |
| THREAD PITCH DIAMETERS | +2.4042 TO +2.4090 INCHES AND +2.2922 TO +2.2978 INCHES |
| THREAD LENGTH | 0.156 INCHES AND 0.172 INCHES |
| THREAD DIRECTION | RIGHT-HAND AND RIGHT-HAND |
| ECCENTRIC CONSTRUCTION | NOT PROVIDED |
| CHAMFER LOCATION | OPPOSITE DRIVE END |
| CHAMFER SIZE | 0.010 IN. BY 45 DEG |
| DRIVE TYPE | SLOTTED FACE |
| ELEMENT SECURING METHOD | THREADED RING |
| OVERALL LENGTH | 0.770 INCHES MINIMUM AND 0.780 INCHES MAXIMUM |
| OVERALL DIAMETER | 2.438 INCHES NOMINAL |
| FSC APPLICATION DATA | PERISCOPE,BATTERY COMMAND |