NSN 1240-00-853-3577
Part Details | OPTICAL ELEMENT RETAINER
1240-00-853-3577 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: 6819157, 6819-157, 1240-00-853-3577, 00-853-3577, 1240008533577, 008533577
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | NOV 22, 1966 | 00-853-3577 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
RECESSED
Cross Reference | NSN 1240-00-853-3577
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6819-157 | 11871 | RECON/OPTICAL, INC. |
Technical Data | NSN 1240-00-853-3577
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | RECESSED |
| HOLE DIAMETER | 4.250 INCHES NOMINAL |
| OVERALL LENGTH | 0.187 INCHES NOMINAL |
| RECESS ANGLE IN DEG | 45.0 |
| RECESS DEPTH | 0.040 INCHES NOMINAL |
| MATERIAL | ALUMINUM |
| SETSCREW NOTCH | PROVIDED |