NSN 1240-01-239-2396
Part Details | OPTICAL ELEMENT RETAINER
1240-01-239-2396 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: SMC805055, SM-C-805055, 1240-01-239-2396, 01-239-2396, 1240012392396, 012392396
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | AUG 27, 1986 | 01-239-2396 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
SHOULDERED
Cross Reference | NSN 1240-01-239-2396
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| SM-C-805055 | 80063 | US ARMY COMMUNICATIONS &ELECTRONICS MATERIEL READINESS |
Technical Data | NSN 1240-01-239-2396
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | SHOULDERED |
| SHOULDER LENGTH | 0.200 INCHES NOMINAL |
| HOLE DIAMETER | 3.170 INCHES NOMINAL |
| OVERALL LENGTH | 0.570 INCHES NOMINAL |
| FLANGE THREAD SIZE | 3.500IN.-28 |
| SHOULDER THREAD SIZE | 3.380IN.-28 |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200 TO 8, 6061, T6 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 6061 |
| DRIVE TYPE | SLOTTED |
| HOLE OR SLOT QUANTITY | 4 |
| WIDTH | 0.060 INCHES NOMINAL |
| DEPTH | 0.150 INCHES NOMINAL |
| DRIVE FACILITY ANGULAR SPACING IN DEG | 90.0 |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| GUIDE DESIGN | THREAD CHAMFER |
| GUIDE LOCATION | EDGE OPPOSITE DRIVE EDGE |
| SETSCREW NOTCH | NOT PROVIDED |
| END ITEM IDENTIFICATION | AN/VSG-2 (A) OPE,AN/VSG-2,M60A3TTS |