NSN 1240-00-007-8429

Part Details | TELESCOPIC INSTRUMENT LIGHT FILTER


1240-00-007-8429 An item having two plane-parallel surfaces and used in the telescopic system of an optical instrument to modify the density or spectral intensity of light by absorption. Several filters having varied characteristics are usually mounted in such a manner that any selected filter may be moved in or out of the optical axis as light conditions warrant. Excludes WINDOW, OPTICAL INSTRUMENT.

Alternate Parts: BG18, BG-18, 10548432, 1240-00-007-8429, 00-007-8429, 1240000078429, 000078429

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
12JUL 07, 197200-007-842913347 ( FILTER, LIGHT, TELESCOPIC INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

Cross Reference | NSN 1240-00-007-8429
Part Number Cage Code Manufacturer
BG-1855736SCHOTT GLASS TECHNOLOGIES INC
1054843219200US ARMY ARDEC RDECOM

Technical Data | NSN 1240-00-007-8429
Characteristic Specifications
OVERALL DIAMETER1.670 INCHES NOMINAL
OVERALL THICKNESS0.130 INCHES NOMINAL
SPECIAL FEATURESWHITE LIGHT TRANSMISSION TO BE AT LEAST 25 PCT;OPTICAL DENSITY AT 0.6943 MICRONS TO BE AT LEAST 5.0;LIGHT DEVIATION NOT TO EXCEED 2 MIN OF ARC;SURFACE QUALITY 80-50 PER MIL SPEC MIL-0-13830;BOTH FLAT SURFACES POLISHED;CHAMFER EDGES 45 DEG
FSC APPLICATION DATATELESCOPE