1240-00-531-6361
Find complete technical information, availability, and procurement data for: 1240-00-531-6361
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A transparent item of a predetermined size that permits unobstructed and undistorted view of a desired area. It may include a frame, have reference markings, grid lines and may be heat strengthened and/or tinted. It is generally used where safety, security, and/or the restriction of foreign matter are required, such as the visual examination of the inside of pressurized tanks, liquid sights, controlled liquid flow, and inspection of equipment enclosed in a housing. See window (as modified); scale, cathode ray tube; scale, plotting; window, metal; window, wood; and window panel, aircraft.
2.261 inches minimum and 2.264 inches maximum diameter, both polished surface, 1.5170 nominal refraction index, 0.010 inches minimum and 0.020 inches maximum bevel depth, 0.230 inches minimum and 0.250 inches maximum thickness
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Diameter
- 2.261 inches minimum and 2.264 inches maximum
- Thickness
- 0.230 inches minimum and 0.250 inches maximum
- Bevel Depth
- 0.010 inches minimum and 0.020 inches maximum
- Refraction Index
- 1.5170 nominal
- Polished Surface
- both
- Dispersion
- 64.5 angstroms nominal
- Reflection Reducing Surface
- both
- Polished Periphery
- not provided
- Bevel Angle In Deg
- 42.000 minimum and 48.000 maximum
- Material
- glass optical location not otherwise specified
- Material Document And Classification
- mil-g-174, class 1, grade c, type 517-645 mil spec single material response location not otherwise specified
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 6650-00-514-5449 | No Name Available | 06/01/1970 |
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 |
|---|---|
| 5316361 | Optical Instrument Window |
FAQs
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What is the FSCG of the NSN 1240-00-531-6361?
Does the NSN 1240-00-531-6361 have a Schedule B code assigned?
Does NSN 1240-00-531-6361 require demilitarization?
Does NSN 1240-00-531-6361 contain precious materials?
Does NSN 1240-00-531-6361 contain hazardous materials?
When the NSN 1240-00-531-6361 was assigned to the Federal Catalog?
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