NSN 6650-01-431-2266

Part Details | OPTICAL INSTRUMENT PRISM

6650-01-431-2266 A transparent item with at least two polished plane surfaces inclined toward each other, designed for use in optical instruments to reflect and/or refract a beam of light. It may have one or more mirrored surfaces for greater reflection. Includes optical wedges used to divert paths of light by refraction, but to a lesser degree. See also BEAM SPLITTER, OPTICAL INSTRUMENT.

Alternate Parts: 74D7402202025, 74D740220-2025, 74D7402202025, 74D740220-2025, 6650-01-431-2266, 01-431-2266, 6650014312266, 014312266

Supply Group (FSG) NSN Assigned NIIN Item Name Code (INC)
66MAY 09, 199601-431-226621879 ( PRISM, OPTICAL INSTRUMENT )
REFERENCE DRAWINGS & PICTURES

RHOMBOIDAL

Cross Reference | NSN 6650-01-431-2266
Part Number Cage Code Manufacturer
74D740220-202576301BOEING COMPANY, THEDBA BOEING
74D740220-202553517ZYGO CORPORATION
Technical Data | NSN 6650-01-431-2266
Characteristic Specifications
SURFACE FINISH POLISHED
COATING FEATURE ANTIREFLECTION
STYLE DESIGNATOR RHOMBOIDAL
OVERALL LENGTH8.550 INCHES NOMINAL
OVERALL WIDTH2.250 INCHES NOMINAL
APERTURE DIAMETER2.000 INCHES NOMINAL
ANGLE IN DEG45.0
REFLECTANCE/TRANSMITTANCE PERCENTAGE RATIO60:40
SPECIAL FEATURES2 SIDES FINE GROUNG TO 30 MICRON MAX.
END ITEM IDENTIFICATIONF/A-18 AIRCRAFT;PERISCOPE ASSY-EOTS.