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National Stock Number:
5855-01-171-2818
Federal Supply Class:
5855
National Item Identification Number:
011712818
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.
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Manufacturer Information:
| 13074684 | 04939 | LOCKHEED MARTIN CORPORATION | | 13074684 | 58260 | PROGRAM MANAGER ADVANCED ATTACK HELICOPTER BARCOM AMCPM-AAH |
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Techincal Specification:
| DRIVE TYPE | SLOTTED | | DEPTH | 0.060 INCHES NOMINAL | | FLANGE DIAMETER | 3.600 INCHES NOMINAL | | HOLE OR SLOT QUANTITY | 4 | | HOLE DIAMETER | 2.950 INCHES NOMINAL | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | OVERALL LENGTH | 0.500 INCHES NOMINAL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE | | MATERIAL | STEEL COMP 630 | | SETSCREW NOTCH | NOT PROVIDED | | SHOULDER LENGTH | 0.375 INCHES NOMINAL | | SHOULDER THREAD SIZE | 3.250 IN.-32 | | WIDTH | 0.060 INCHES NOMINAL | | STYLE DESIGNATOR | SHOULDERED | | SURFACE TREATMENT | PASSIVATE |
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