NSN 5855-01-171-6945
Part Details | OPTICAL ELEMENT RETAINER
5855-01-171-6945 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: 13074922, 13074922, 5855-01-171-6945, 01-171-6945, 5855011716945, 011716945
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 58 | FEB 11, 1984 | 01-171-6945 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
SHOULDERED
Cross Reference | NSN 5855-01-171-6945
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 13074922 | 04939 | LOCKHEED MARTIN CORPORATIONDBA LOCKHEED MARTIN |
| 13074922 | 58260 | PROGRAM MANAGER ADVANCED ATTACKHELICOPTER BARCOM AMCPM-AAH |
Technical Data | NSN 5855-01-171-6945
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | SHOULDERED |
| SHOULDER DIAMETER | 0.920 INCHES NOMINAL |
| SHOULDER LENGTH | 0.265 INCHES NOMINAL |
| HOLE DIAMETER | 0.850 INCHES NOMINAL |
| OVERALL LENGTH | 0.495 INCHES NOMINAL |
| FLANGE THREAD SIZE | 1.000 IN.-40 |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |