NSN 1240-01-046-4259
Part Details | OPTICAL ELEMENT RETAINER
1240-01-046-4259 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: 11741185, 1240-01-046-4259, 01-046-4259, 1240010464259, 010464259
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | AUG 18, 1977 | 01-046-4259 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
RECESSED
Cross Reference | NSN 1240-01-046-4259
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 11741185 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-01-046-4259
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | RECESSED |
| OVERALL LENGTH | 0.240 INCHES MINIMUM AND 0.250 INCHES MAXIMUM |
| RECESS DIAMETER | 0.990 INCHES MINIMUM AND 1.000 INCHES MAXIMUM |
| RECESS DEPTH | 0.220 INCHES NOMINAL |
| THREAD SIZE | AA1.875 |
| HOLE CHAMFER ANGLE IN DEG | 45.0 |
| DRIVE TYPE | SLOTTED |
| HOLE OR SLOT QUANTITY | 4 |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| SETSCREW NOTCH | NOT PROVIDED |