NSN 1240-00-851-4868
Part Details | OPTICAL ELEMENT RETAINER
1240-00-851-4868 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: 8615902, 8615902, 1240-00-851-4868, 00-851-4868, 1240008514868, 008514868
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JAN 01, 1962 | 00-851-4868 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
SHOULDERED
Cross Reference | NSN 1240-00-851-4868
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8615902 | 11934 | SEILER INSTRUMENT AND MANUFACTURINGCOMPANY, INCORPORATED |
| 8615902 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-851-4868
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | SHOULDERED |
| SHOULDER LENGTH | 0.210 INCHES NOMINAL |
| HOLE DIAMETER | 1.064 INCHES NOMINAL |
| OVERALL LENGTH | 0.390 INCHES NOMINAL |
| FLANGE DIAMETER | 1.200 INCHES NOMINAL |
| SHOULDER THREAD SIZE | 1.188 IN.-32-2A |
| MATERIAL | ALUMINUM ALLOY 2024 |
| DRIVE TYPE | SLOTTED |
| HOLE OR SLOT QUANTITY | 1 |
| WIDTH | 0.057 INCHES NOMINAL |
| DEPTH | 0.057 INCHES NOMINAL |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| GUIDE DESIGN | THREAD RELIEF |
| GUIDE LOCATION | SHOULDER |
| SETSCREW NOTCH | NOT PROVIDED |
| FSC APPLICATION DATA | TELESCOPE ELBOW,T176 INTEGRATED WITH FIRE CONTROL |