|
|
|
National Stock Number:
1240-00-864-6542
Federal Supply Class:
1240
National Item Identification Number:
008646542
Description:
RETAINER,OPTICAL ELEMENT
Detail:
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.
|
Manufacturer Information:
| 7660507 | 19200 | US ARMY ARDEC RDECOM |
|
Techincal Specification:
| HOLE DIAMETER | 0.660 INCHES MINIMUM AND | | 0.670 INCHES MAXIMUM | | OVERALL LENGTH | 0.180 INCHES NOMINAL | | THREAD SIZE | 0.800 IN.-48 NS-2 | | MATERIAL | ALUMINUM ALLOY 2024 | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-785, T3, TYPE 1-CANCELED FED SPEC SINGLE MATERIAL RESPONSE | | SURFACE TREATMENT | ANODIZE | | DRIVE TYPE | SLOTTED | | HOLE OR SLOT QUANTITY | 2 | | WIDTH | 0.060 INCHES NOMINAL | | DEPTH | 0.040 INCHES NOMINAL | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | SETSCREW NOTCH | NOT PROVIDED |
|
|