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Worldwide distributor of NSN parts and consumables located in the USA.

Optical Instrument Window

Model / MPN: 1723 | NSN: 1240-00-133-5849
ITAR Registered seal

A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.

Product Details
NATO Stock Number
1240-00-133-5849
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Diameter
Between 3.120 inches and 3.125 inches
Thickness
Between 0.140 inches and 0.160 inches
Bevel Depth
Between 0.020 inches and 0.030 inches
Reflection Reducing Surface
Both
Polished Periphery
Not provided
Bevel Angle In Deg
Between 42.000 and 48.000
Material
Glass
Material
Glass
Fsc Application Data
Collimator, infinity aiming reference
1723 Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M125T1899 Window, Optical Inst 224 EA 11/18/2024
SPE7M825T5844 Window, Optical Inst 224 EA 08/07/2025

Pricing and Availability

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1723 Cross Reference
  • 10555970