NSN 1240-00-599-9218

Optical Instrument Window

FSC: 1240 NIIN: 005999218

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Product Characteristics

NSN:

1240005999218

Demilitarization:

INC:

10908

Shelf Life:

N/A

Width:

Between 24.9 millimeters and 25.4 millimeters

Thickness:

Between 4.800 millimeters and 5.200 millimeters

Length:

Between 62.740 millimeters and 63.240 millimeters

Surface Finish:

Polished

Bevel Depth:

0.510 millimeters

Refraction Index:

Between 1.5160 and 1.5180

Polished Surface:

Both

Dispersion:

Between 64.000 angstroms and 65.000 angstroms

Reflection Reducing Surface:

Both

Polished Periphery:

Not provided

Bevel Angle In Deg:

45.000

Special Features:

Corners rounded 0.237in. Max 0.197in. Min. Radius; resolving power to be 30 sec of arc or better as used whenscanning clear aperture with a telescope of at least a 0.5in. Aperture; light deviation not to exceed plus or minus 2 min of arc; spherical power not toexceed 7 millidiopters; astigmatism not to exceed 3 millidiopters; surface quali type 80-50

Material:

Glass, optical, jan-g-174, type 517-645, grade c

Material:

Glass, optical, jan-g-174, type 517-645, grade c

Fsc Application Data:

Sight periscope t42

Part Numbers

8567556
US ARMY ARDEC RDECOM

Shipping & Handling

HMIRS:

No MSDS. No hazardous material.

ESD:

No known electrostatic discharge.

Schedule B:

9803200000 - Military equipments not identified by kind.

Professional Distribution

ITAR Registered
DDTC Registered
HAZMAT Certified
AS9120 Quality Standards
100% Quality Inspections

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Cage Codes

US ARMY ARDEC RDECOM - 19200