NSN 1240-00-864-6542
Part Details | OPTICAL ELEMENT RETAINER
1240-00-864-6542 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: 7660507, 1240-00-864-6542, 00-864-6542, 1240008646542, 008646542
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1962 | 00-864-6542 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-00-864-6542
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 7660507 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-864-6542
| Characteristic | Specifications |
|---|---|
| HOLE DIAMETER | 0.660 INCHES MINIMUM AND 0.670 INCHES MAXIMUM |
| OVERALL LENGTH | 0.180 INCHES NOMINAL |
| THREAD SIZE | 0.800 IN.-48 NS-2 |
| MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-785, T3, TYPE 1-CANCELED FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 2024 |
| SURFACE TREATMENT | ANODIZE |
| DRIVE TYPE | SLOTTED |
| HOLE OR SLOT QUANTITY | 2 |
| WIDTH | 0.060 INCHES NOMINAL |
| DEPTH | 0.040 INCHES NOMINAL |
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| SETSCREW NOTCH | NOT PROVIDED |
| END ITEM IDENTIFICATION | 1240-00-106-7754 |