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National Stock Number:
6650-00-464-1183
Federal Supply Class:
6650
National Item Identification Number:
004641183
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:
| 10045024 | A486G | NIMIKKEISTOKESKUS NCB FINLAND | | 10188967 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | 10188967 | 1A228 | ABSTON MACHINE SHOP, INC. | | 10188967 | 3V055 | ANCO MACHINE, INC |
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Techincal Specification:
| STYLE DESIGNATOR | RECESSED | | HOLE DIAMETER | 3.417 INCHES MINIMUM AND | | 3.427 INCHES MAXIMUM | | OVERALL LENGTH | 0.220 INCHES NOMINAL | | RECESS DIAMETER | 3.302 INCHES MINIMUM AND | | 3.312 INCHES MAXIMUM | | RECESS DEPTH | 0.109 INCHES NOMINAL | | THREAD SIZE | 3.5156 IN.-28 UNS-2A | | COUNTERBORE TAPER ANGLE IN DEG | 45.0 | | HOLE CHAMFER ANGLE IN DEG | 45.0 | | HOLE CHAMFER DIAMETER | 3.260 INCHES MINIMUM AND | | 3.270 INCHES MAXIMUM | | MATERIAL | ALUMINUM ALLOY, WW-T-789, T6, TYPE 1-CANCELED | | SURFACE TREATMENT | ANODIZE | | DRIVE TYPE | SLOTTED | | HOLE OR SLOT QUANTITY | 2 | | WIDTH | 0.135 INCHES NOMINAL | | DEPTH | 0.100 INCHES NOMINAL | | DRIVE FACILITY ANGULAR SPACING IN DEG | 180.0 | | INTERNAL ANNULAR SERRATION | NOT PROVIDED | | SETSCREW NOTCH | NOT PROVIDED | | FSC APPLICATION DATA | LAUNCHER,TUBULAR GUIDED MISSILE | | THE MANUFACTURERS DATA | | | MANUFACTURERS CODE | 18876 | | DESIGN CONTROL REFERENCE | 10188967 |
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