NSN 1240-01-204-7772
Part Details | OPTICAL ELEMENT RETAINER
1240-01-204-7772 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: 13076119, 13076119, 1240-01-204-7772, 01-204-7772, 1240012047772, 012047772
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | MAR 29, 1985 | 01-204-7772 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
RECESSED
Cross Reference | NSN 1240-01-204-7772
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 13076119 | 04939 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 13076119 | 58260 | PROGRAM MANAGER ADVANCED ATTACKHELICOPTER BARCOM AMCPM-AAH |
Technical Data | NSN 1240-01-204-7772
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | RECESSED |
| HOLE DIAMETER | 0.140 INCHES MINIMUM AND 0.146 INCHES MAXIMUM |
| OVERALL LENGTH | 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM |
| RECESS DIAMETER | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM |
| RECESS DEPTH | 0.268 INCHES MINIMUM AND 0.288 INCHES MAXIMUM |
| THREAD SIZE | 0.014 |
| HOLE CHAMFER ANGLE IN DEG | 45.0 |
| HOLE CHAMFER DIAMETER | 0.422 INCHES MINIMUM AND 0.426 INCHES MAXIMUM |
| MATERIAL | ALUMINUM ALLOY |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| GUIDE DESIGN | THREAD CHAMFER |
| GUIDE LOCATION | SHOULDER |
| SETSCREW NOTCH | NOT PROVIDED |