1240-00-161-0423

Find complete technical information, availability, and procurement data for: 1240-00-161-0423

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1240-00-161-0423
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-00-161-0423
Item Name Code
21859
Assigment Date
01/24/1973 (53 years ago)

1.700 inches minimum and 1.710 inches maximum overall length, +1.7054 to 1.7094 inches and +1.5682 to 1.5722 inches and +1.4484 to 1.4536 inches thread pitch diameters, 1.750-16-0.375l and 1.593-32 and 1.468-32 thread size, right-hand thread direction, 0.650 inches and 0.390 inches and 0.156 inches thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Pitch Diameters
+1.7054 to 1.7094 inches and +1.5682 to 1.5722 inches and +1.4484 to 1.4536 inches
Thread Direction
right-hand
Thread Length
0.650 inches and 0.390 inches and 0.156 inches
Overall Length
1.700 inches minimum and 1.710 inches maximum
Thread Size
1.750-16-0.375l and 1.593-32 and 1.468-32
Overall Diameter
1.772 inches minimum and 1.775 inches maximum
Screw Thread Series Designator
uns
Thread Location
external and internal
Eccentric Construction
not provided
Chamfer Location
internal thread end
Chamfer Size
0.010 in. to 0.020 in. by 45 deg.
Element Securing Method
cement and threaded ring
Special Features
three holes 0.086-64unf-2b thd,spaced 120 deg apart on periphery of external thread end.
Material
aluminum alloy 2024
Material Document And Classification
ww-t-700/3, alloy 2024, t3 fed spec 1st material response and qq-a-225/6, alloy 2024, t4 fed spec 2nd material response and qq-a-225/6, alloy 2024, t6 fed spec 3rd material response
Surface Treatment
anodize
Fsc Application Data
periscope,battery command

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
8215538 Optical Element Cell

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 1240-00-161-0423?
The FSCG of the NSN 1240-00-161-0423 is 1240
Does the NSN 1240-00-161-0423 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-00-161-0423 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 1240-00-161-0423 contain precious materials?
Precious metal content is unknown
Does NSN 1240-00-161-0423 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 1240-00-161-0423 was assigned to the Federal Catalog?
It was assigned 53 years ago, on Wed, Jan 24, 1973

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