1240-00-251-7511
Find complete technical information, availability, and procurement data for: 1240-00-251-7511
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An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see window, optical instrument. Excludes:reticle, optical instrument.
0.500 in.-oi and 0.688 in.-24 and 0.625 in.-32 thread size, 0.244 inches and 0.316 inches and 0.142 inches thread length, 2.276 inches minimum and 2.281 inches maximum overall length, 2a and 2b thread class, right-hand thread direction
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 2a and 2b
- Thread Direction
- right-hand
- Thread Length
- 0.244 inches and 0.316 inches and 0.142 inches
- Overall Length
- 2.276 inches minimum and 2.281 inches maximum
- Thread Size
- 0.500 in.-oi and 0.688 in.-24 and 0.625 in.-32
- Overall Diameter
- 0.796 inches minimum and 0.812 inches maximum
- Screw Thread Series Designator
- un and unef
- Accessory Components And Quantity
- retainer,optical element 1
- Thread Location
- external and internal
- Eccentric Construction
- not provided
- Cell Controlling Agency
- frankford arsenal
- Cell Identifying Number
- 11741682 part no.
- Optical Element Quantity
- 1
- Optical Element Type
- single lens
- Optical Element Controlling Agency
- frankford arsenal
- Optical Element Identifying Number
- 11741684 part no.
- Special Features
- surface treatment,anodized,mil-a-8625,type 2,class 2,black. two flats centrally located with a 0.688 in. width across flats. four 0.062 in. dia holes spaced 90 deg apart on external thread end.
- Fsc Application Data
- trainer,tank gunnery
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 |
|---|---|
| 11741681 | Optical Instrument Cell Assembly |
FAQs
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When the NSN 1240-00-251-7511 was assigned to the Federal Catalog?
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