189659PC3
View detailed technical data, stock status, and sourcing information for: 189659PC3
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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.
both polished surface, 1.5171 nominal refraction index, 4.000 millimeters nominal thickness, 24.800 millimeters minimum and 25.000 millimeters maximum diameter, 64.5 angstroms nominal dispersion
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Diameter
- 24.800 millimeters minimum and 25.000 millimeters maximum
- Thickness
- 4.000 millimeters nominal
- Refraction Index
- 1.5171 nominal
- Polished Surface
- both
- Dispersion
- 64.5 angstroms nominal
- Reflection Reducing Surface
- both
- Polished Periphery
- not provided
- 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
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FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 1240-00-171-7898?
Does the NSN 1240-00-171-7898 have a Schedule B code assigned?
Does NSN 1240-00-171-7898 require demilitarization?
Does NSN 1240-00-171-7898 contain precious materials?
Does NSN 1240-00-171-7898 contain hazardous materials?
When the NSN 1240-00-171-7898 was assigned to the Federal Catalog?
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