NSN 1240-01-079-9839
Part Details | OPTICAL ELEMENT CELL
1240-01-079-9839 A cylindrical item specifically designed to hold a lens, reticle, or window in an optical system. Includes eccentric cells and/or rings designed to be rotated within the instrument to shift an optical element to a prescribed position.
Alternate Parts: 12266782, 1240-01-079-9839, 01-079-9839, 1240010799839, 010799839
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JUL 17, 1979 | 01-079-9839 | 21859 ( CELL, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-01-079-9839
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 12266782 | 19207 | U S ARMY TANK AUTOMOTIVE COMMANDAMSTA-IM-MM |
Technical Data | NSN 1240-01-079-9839
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY |
| THREAD LOCATION | EXTERNAL |
| THREAD SIZE | A4.812-32$$A4.916-32 |
| SCREW THREAD SERIES DESIGNATOR | UNS AND UNS |
| THREAD CLASS | A2B$$A2A |
| THREAD PITCH DIAMETERS | +4.7917 TO +4.7983 INCHES AND +4.8895 TO +4.8942 INCHES |
| THREAD LENGTH | 4.812 INCHES AND 4.916 INCHES |
| THREAD DIRECTION | RIGHT-HAND AND RIGHT-HAND |
| ECCENTRIC CONSTRUCTION | NOT PROVIDED |
| CHAMFER LOCATION | THREADED END |
| CHAMFER SIZE | 0.030 IN. BY 45 DEG |
| OVERALL LENGTH | 4.874 INCHES MINIMUM AND 4.875 INCHES MAXIMUM |
| OVERALL WIDTH | 2.620 INCHES MINIMUM AND 2.640 INCHES MAXIMUM |
| OVERALL DIAMETER | 5.088 INCHES MINIMUM AND 5.090 INCHES MAXIMUM |