1240-00-504-8251

Find complete technical information, availability, and procurement data for: 1240-00-504-8251

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1240-00-504-8251
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-00-504-8251
Item Name Code
21859
Assigment Date
01/01/1963 (63 years ago)

0.438 inches and 0.312 inches thread length, 0.609 inches nominal overall height, 3b and 3a thread class, 0.723-48 and 0.825-48 thread size, 0.825 inches nominal overall diameter

Product Characteristics

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

Thread Class
3b and 3a
Thread Length
0.438 inches and 0.312 inches
Overall Height
0.609 inches nominal
Thread Size
0.723-48 and 0.825-48
Overall Diameter
0.825 inches nominal
Screw Thread Series Designator
uns
Drive Type
slotted face
Thread Location
internal and external
Eccentric Construction
not provided
Chamfer Location
both ends
Chamfer Size
0.01 in. by 45 deg
Element Securing Method
threaded ring
Material
copper alloy 330
Material Document And Classification
mil-b-13492, comp 1-canceled mil spec single material response
Surface Treatment
oxide
Fsc Application Data
telescope m7,integrated with fire control

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
5048251 Optical Element Cell

FAQs

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

What is the FSCG of the NSN 1240-00-504-8251?
The FSCG of the NSN 1240-00-504-8251 is 1240
Does the NSN 1240-00-504-8251 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-00-504-8251 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 1240-00-504-8251 contain precious materials?
Precious metal content is unknown
Does NSN 1240-00-504-8251 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 1240-00-504-8251 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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