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Optical Spotting Instrument

Model / MPN: 512.FN | NSN: 1240-01-655-3443
ITAR Registered seal

An item used for spotting enemy fire, detecting azimuth and deflection errors in bursts of fire for flash ranging, terrestrial and celestial observation, and for accurate measurement of horizontal and vertical angles by the use of reticles. It may have a single or dual optical syste (s), utilizing a straight or offset (raised) line of sight. It is supported by a tribrach having a leveling plate with adjusting screws, circular and/or tubular level vials, azimuth and elevation controls, and the like. It may be mounted in a tripod or groundshelf mount, and usually includes accommodations for a light, instrument.

Product Details
NATO Stock Number
Sold in multiples of
512.F Series Parts

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512.FN Cross Reference
  • 3221800193