NSN 1240-00-315-0018

Part Details | OPTICAL ELEMENT RETAINER

1240-00-315-0018 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.

Alternate Parts: BP13863, 279510, 279510PC2, 1240-00-315-0018, 00-315-0018, 1240003150018, 003150018

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JAN 01, 196300-315-001822451 ( RETAINER, OPTICAL ELEMENT )
REFERENCE DRAWINGS & PICTURES

SHOULDERED

Cross Reference | NSN 1240-00-315-0018
Part Number Cage Code Manufacturer
BP1386327361BURKE PRODUCTS, INC.
27951078039LEICA INCSURVEYING AND PHOTOGRAMMETRY SYSTEMS
279510PC210001NAVAIR AND NAVSEA MANAGEDORIGINAL DESIGN ACTIVITY DWG NOT
Technical Data | NSN 1240-00-315-0018
Characteristic Specifications
STYLE DESIGNATOR SHOULDERED
SHOULDER LENGTH0.500 INCHES NOMINAL
HOLE DIAMETER2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM
OVERALL LENGTH1.050 INCHES MINIMUM AND 1.070 INCHES MAXIMUM
FLANGE THREAD SIZE3.125 IN.-32 NS-3
SHOULDER THREAD SIZE2.875 IN.-32 NS-3
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613, COMP 11, 1 TO 2H FED SPEC SINGLE MATERIAL RESPONSE
MATERIAL9$DCU0304$DCU0080$DCU0081$DCU0272$DCU0274$DCU0302$DCU0330$DCU0305$DCU0332$DCU0335$DCU0340$DCU0088$DCU0306$DCU0307$DCU0308$DCU0309$DCU0310$DCU0089$DCU0090$DCU0091$DCU0370
SURFACE TREATMENT NICKEL
DRIVE TYPE SLOTTED
HOLE OR SLOT QUANTITY2
WIDTH0.120 INCHES NOMINAL
DEPTH0.120 INCHES NOMINAL
DRIVE FACILITY ANGULAR SPACING IN DEG180.0
INTERNAL ANNULAR SERRATION NOT PROVIDED
SETSCREW NOTCH NOT PROVIDED