NSN 1240-00-420-9122
Part Details | OPTICAL ELEMENT RETAINER
1240-00-420-9122 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: 1240004209122, 10516720, 1240-00-420-9122, 00-420-9122, 1240004209122, 004209122
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | MAR 12, 1969 | 00-420-9122 | 22451 ( RETAINER, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
RECESSED
Cross Reference | NSN 1240-00-420-9122
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1240004209122 | A00AM | E.C.A ETABLISSEMENT CENTRALDESAPPROVISIONNEMENTS DES FORCES |
| 10516720 | 19200 | US ARMY ARDEC RDECOM |
Technical Data | NSN 1240-00-420-9122
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | RECESSED |
| HOLE DIAMETER | 1.000 INCHES MINIMUM AND 1.005 INCHES MAXIMUM |
| OVERALL LENGTH | 0.125 INCHES MINIMUM AND 0.130 INCHES MAXIMUM |
| RECESS ANGLE IN DEG | 160.0 |
| RECESS DEPTH | 0.022 INCHES NOMINAL |
| THREAD SIZE | 1.312 IN.-32UNS-2A |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-225 TO 6, ALLOY 2024, T351 FED SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | ALUMINUM ALLOY 2024 |
| SURFACE TREATMENT | ANODIZE |
| DRIVE TYPE | SLOTTED |
| HOLE OR SLOT QUANTITY | 2 |
| WIDTH | 0.062 INCHES MINIMUM AND 0.078 INCHES MAXIMUM |
| DEPTH | 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 |
| INTERNAL ANNULAR SERRATION | NOT PROVIDED |
| SETSCREW NOTCH | NOT PROVIDED |
| FSC APPLICATION DATA | PERISCOPE,TANK M32,M32C,M35,M36 |
