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Optical Instrument Cell Assembly

Model / MPN: 11741681 | NSN: 1240-00-251-7511
ITAR Registered seal

An item consisting of a cell, optical element in which is secured one or more optical elements, such as lenses, reticles, filters, windows, and the like. May include retaining rings, spacers, and/or separators. For items with focusing facilities and/or a diopter scale, see eyepiece assembly, optical instrument.

Product Details
NATO Stock Number
1240-00-251-7511
Sold in multiples of
1 AY
DEMIL
DEMIL/MLI
Thread Class
2a and 2a and 2b
Thread Direction
Right-hand and right-hand and right-hand
Thread Length
0.244 inches and 0.316 inches and 0.142 inches
Overall Length
Between 2.276 inches and 2.281 inches
Thread Size
0.500 in.-oi and 0.688 in.-24 and 0.625 in.-32
Overall Diameter
Between 0.796 inches and 0.812 inches
Screw Thread Series Designator
Un and unef and un
Accessory Components And Quantity
Retainer, optical element 1
Thread Location
External and external and internal
Eccentric Construction
Not provided
Cell Controlling Agency
Frankford arsenal
Cell Identifying Number
11741682 part no.
Optical Element Quantity
1
Optical Element Type
Single lens
Optical Element Controlling Agency
Frankford arsenal
Optical Element Identifying Number
11741684 part no.
Fsc Application Data
Trainer, tank gunnery
11741 Series Parts

Pricing and Availability

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11741681 Cross Reference