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National Stock Number: 1240-00-208-7561
Federal Supply Class: 1240
National Item Identification Number: 002087561
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:
11738900 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
DRIVE TYPE | SLOTTED | DRIVE FACILITY ANGULAR SPACING IN DEG | 90.0 | DEPTH | 0.070 INCHES MINIMUM AND 0.090 INCHES MAXIMUM | FLANGE THREAD SIZE | 1.500 IN.-32UNS-2A | FSC APPLICATION DATA | RECEIVER-TRANSMITTER,LASER | GUIDE DESIGN | THREAD CHAMFER | GUIDE LOCATION | BOTH EDGES | HOLE DIAMETER | 1.254 INCHES MINIMUM AND 1.258 INCHES MAXIMUM | HOLE OR SLOT QUANTITY | 4 | INTERNAL ANNULAR SERRATION | NOT PROVIDED | OVERALL LENGTH | 0.210 INCHES MINIMUM AND 0.230 INCHES MAXIMUM | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE | MATERIAL | STEEL COMP 630 | SETSCREW NOTCH | NOT PROVIDED | SHOULDER LENGTH | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM | SHOULDER DIAMETER | 1.360 INCHES MINIMUM AND 1.370 INCHES MAXIMUM | WIDTH | 0.060 INCHES MINIMUM AND 0.080 INCHES MAXIMUM | STYLE DESIGNATOR | SHOULDERED | SUPPLEMENTARY FEATURES | HEAT TREATMENT,MIL-H-6875,COND H925 | SURFACE TREATMENT | PASSIVATE |
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