|
|
|
National Stock Number:
1270-01-171-6926
Federal Supply Class:
1270
National Item Identification Number:
011716926
Description:
CELL,OPTICAL ELEMENT
Detail:
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.
|
Manufacturer Information:
| 13074694 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074694 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
|
Techincal Specification:
| MATERIAL | CRES,ASTM A582,TY 416 | | SURFACE TREATMENT | BLACK OXIDE,MIL-C-13924,CLASS 3 | | THREAD LOCATION | INTERNAL | | THREAD SIZE | 1.850-40 | | SCREW THREAD SERIES DESIGNATOR | UNS | | THREAD CLASS | 2B | | THREAD PITCH DIAMETERS | 1.8338 TO 1.8388 INCHES | | THREAD LENGTH | 0.210 INCHES | | THREAD DIRECTION | RIGHT-HAND | | ECCENTRIC CONSTRUCTION | NOT PROVIDED | | CHAMFER LOCATION | INTERNAL THREAD END | | CHAMFER SIZE | 0.015 IN.BY 45 DEG | | DRIVE TYPE | DRILLED HOLE ON PERIPHERY | | ELEMENT SECURING METHOD | RETAINER RING | | OVERALL LENGTH | 3.400 INCHES NOMINAL | | OVERALL DIAMETER | 1.950 INCHES MINIMUM AND | | 1.960 INCHES MAXIMUM | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 04939 | | DESIGN CONTROL REFERENCE | 13074694 |
|
|