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National Stock Number:
1240-00-121-0797
Federal Supply Class:
1240
National Item Identification Number:
001210797
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:
| 8289250 | 19200 | US ARMY ARDEC RDECOM |
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Techincal Specification:
| STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 1.450 INCHES MINIMUM AND | | 1.460 INCHES MAXIMUM | | OVERALL LENGTH | 0.090 INCHES MINIMUM AND | | 0.100 INCHES MAXIMUM | | RECESS ANGLE IN DEG | 90.0 | | RECESS DEPTH | 0.070 INCHES NOMINAL | | THREAD SIZE | 1.688 IN.-32UNS-2A | | MATERIAL | ALUMINUM ALLOY 2024 OR | | ALUMINUM ALLOY 355.0 OR | | ALUMINUM ALLOY 6061 OR | | ALUMINUM ALLOY 6062 | | MATERIAL DOCUMENT AND CLASSIFICATION | WW-T-700/3 FED SPEC 1ST MATERIAL RESPONSE OR | | QQ-A-225/6 FED SPEC 1ST MATERIAL RESPONSE OR | | MIL-C-11866, COMP 3, T6 MIL SPEC 2ND MATERIAL RESPONSE OR | | QQ-A-200/8 FED SPEC 3RD MATERIAL RESPONSE OR | | QQ-A-225/8 FED SPEC 3RD MATERIAL RESPONSE OR | | QQ-A-250/11, T6 FED SPEC 3RD MATERIAL RESPONSE | | SURFACE TREATMENT | ANODIZE | | DRIVE TYPE | SLOTTED | | HOLE OR SLOT QUANTITY | 2 | | WIDTH | 0.062 INCHES MINIMUM AND | | 0.078 INCHES MAXIMUM | | DEPTH | 0.030 INCHES MINIMUM AND | | 0.040 INCHES MAXIMUM | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | GUIDE DESIGN | THREAD CHAMFER | | GUIDE LOCATION | BOTH EDGES | | SETSCREW NOTCH | NOT PROVIDED | | FSC APPLICATION DATA | PERISCOPE,TANK M32,M32C | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 19200 | | DESIGN CONTROL REFERENCE | 8289250 |
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