NSN 1240-01-257-9643
Part Details | OPTICAL ELEMENT CELL
1240-01-257-9643 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: 350311, 1240-01-257-9643, 01-257-9643, 1240012579643, 012579643
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 12 | JUN 26, 1987 | 01-257-9643 | 21859 ( CELL, OPTICAL ELEMENT ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 1240-01-257-9643
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 350311 | 22915 | NORTHROP GRUMMAN CORPELECTRONIC SYSTEMS DEFENSIVE SYSTEM |
Technical Data | NSN 1240-01-257-9643
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL |
| THREAD LOCATION | INTERNAL |
| THREAD SIZE | 000-120 |
| SCREW THREAD SERIES DESIGNATOR | UNF |
| THREAD CLASS | 1B |
| THREAD DIRECTION | RIGHT-HAND |
| ECCENTRIC CONSTRUCTION | NOT PROVIDED |
| CHAMFER LOCATION | BOTH ENDS |
| CHAMFER SIZE | 0.010 IN. BY 15 DEG |
| ELEMENT SECURING METHOD | INTERNAL THREAD |
| OVERALL LENGTH | 0.140 INCHES NOMINAL |
| OVERALL DIAMETER | 1.248 INCHES NOMINAL |
| END ITEM IDENTIFICATION | 1260-01-208-6448 MAST |