NSN 1240-01-078-8280
Part Details | OPTICAL ELEMENT RETAINER
1240-01-078-8280 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: 12266634, 12266634, 1240-01-078-8280, 01-078-8280, 1240010788280, 010788280
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JUN 20, 1979 | 01-078-8280 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
RECESSED
Cross Reference | NSN 1240-01-078-8280
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 12266634 | 20418 | DRS SUSTAINMENT SYSTEMS, INC.Use CAGE Code 98255 for cataloging |
| 12266634 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
Technical Data | NSN 1240-01-078-8280
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | RECESSED |
| HOLE DIAMETER | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| OVERALL LENGTH | 0.477 INCHES MINIMUM AND 0.487 INCHES MAXIMUM |
| RECESS DIAMETER | 3.060 INCHES MINIMUM AND 3.070 INCHES MAXIMUM |
| RECESS DEPTH | 0.053 INCHES MINIMUM AND 0.063 INCHES MAXIMUM |
| THREAD SIZE | B3.000 IN.-32 |
| HOLE CHAMFER ANGLE IN DEG | 45.0 |
| HOLE CHAMFER DIAMETER | 3.245 INCHES MINIMUM AND 3.255 INCHES MAXIMUM |
| MATERIAL | ALUMINUM ALLOY 6061 |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| GUIDE DESIGN | THREAD RELIEF |
| GUIDE LOCATION | BOTH EDGES |
| SETSCREW NOTCH | NOT PROVIDED |