1240-01-257-9643
Find complete technical information, availability, and procurement data for: 1240-01-257-9643
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Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-01-257-9643
Item Name Code
21859
Assigment Date
06/26/1987 (39 years ago)
1.248 inches nominal overall diameter, 1b thread class, right-hand thread direction, 0.140 inches nominal overall length, 000-120 thread size
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 1b
- Thread Direction
- right-hand
- Overall Length
- 0.140 inches nominal
- Thread Size
- 000-120
- Overall Diameter
- 1.248 inches nominal
- End Item Identification
- 1260-01-208-6448 mast
- Screw Thread Series Designator
- unf
- Thread Location
- internal
- Eccentric Construction
- not provided
- Chamfer Location
- both ends
- Chamfer Size
- 0.010 in. by 15 deg
- Element Securing Method
- internal thread
- Material
- steel
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 |
|---|---|
| 350311 | Optical Element Cell |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 1240-01-257-9643?
The FSCG of the NSN 1240-01-257-9643 is 1240
Does the NSN 1240-01-257-9643 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-01-257-9643 require demilitarization?
Usml or ccl military items - demil required. Destroy item and components to prevent restoration or repair to a usable condition. (note 5).
Does NSN 1240-01-257-9643 contain precious materials?
Item does not contain precious metal.
Does NSN 1240-01-257-9643 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 1240-01-257-9643 was assigned to the Federal Catalog?
It was assigned 39 years ago, on Fri, Jun 26, 1987
Professional Distribution
Certified to meet the strict requirements of defense, aerospace, and hazardous materials distribution.
- ITAR Registered
- DDTC Registered
- HAZMAT Certified
- AS9120 Quality Standards
- 100% Quality Inspections
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