NSN 1240-01-320-1003
Part Details | OPTICAL ELEMENT RETAINER
1240-01-320-1003 A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see CELL, OPTICAL ELEMENT. Excludes RING, EXTERNALLY THREADED.
Alternate Parts: 13077163501, 13077163-501, 13077163501, 13077163-501, 1240-01-320-1003, 01-320-1003, 1240013201003, 013201003
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | MAY 19, 1990 | 01-320-1003 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
RECESSED
Cross Reference | NSN 1240-01-320-1003
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 13077163-501 | 04939 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 13077163-501 | 58260 | PROGRAM MANAGER ADVANCED ATTACKHELICOPTER BARCOM AMCPM-AAH |
Technical Data | NSN 1240-01-320-1003
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | RECESSED |
| HOLE DIAMETER | 0.974 INCHES MINIMUM AND 1.004 INCHES MAXIMUM |
| OVERALL LENGTH | 0.145 INCHES MINIMUM AND 0.155 INCHES MAXIMUM |
| RECESS DIAMETER | 0.974 INCHES MINIMUM AND 1.004 INCHES MAXIMUM |
| RECESS DEPTH | 0.130 INCHES NOMINAL |
| THREAD SIZE | 1.125 IN.-40 |
| HOLE CHAMFER ANGLE IN DEG | 30.0 |
| HOLE CHAMFER DIAMETER | 1.029 INCHES MINIMUM AND 1.033 INCHES MAXIMUM |
| MATERIAL | ALUMINUM ALLOY 6061 |
| DRIVE TYPE | SLOTTED |
| HOLE OR SLOT QUANTITY | 4 |
| WIDTH | 0.040 INCHES NOMINAL |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| GUIDE DESIGN | THREAD CHAMFER |
| SETSCREW NOTCH | NOT PROVIDED |
| END ITEM IDENTIFICATION | OPTICAL IMPROVEMENT PROGRAM FOR TARGET ACQUISITION DESIGNATION SIGHT |