1240-00-171-7897
Find complete technical information, availability, and procurement data for: 1240-00-171-7897
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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.
45.960 millimeters minimum and 48.000 millimeters maximum diameter, 1.5171 nominal refraction index, both polished surface, 1.000 millimeters nominal bevel depth, 3.000 millimeters nominal thickness
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Diameter
- 45.960 millimeters minimum and 48.000 millimeters maximum
- Thickness
- 3.000 millimeters nominal
- Bevel Depth
- 1.000 millimeters nominal
- Refraction Index
- 1.5171 nominal
- Polished Surface
- both
- Dispersion
- 64.5 angstroms nominal
- Reflection Reducing Surface
- both
- Polished Periphery
- not provided
- Bevel Angle In Deg
- 45.000 nominal
- Material
- glass optical location not otherwise specified
- Material Document And Classification
- jan-g-174, type 517-645, grade a mil spec single material response location not otherwise specified
- Fsc Application Data
- periscope mk 23 mod 0 and mk 24 mod 0
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 181146PC9 | Optical Instrument Window |
FAQs
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When the NSN 1240-00-171-7897 was assigned to the Federal Catalog?
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