7639257

View detailed technical data, stock status, and sourcing information for: 7639257
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Federal Supply Group

Fire Control Equipment

Federal Supply Classification

1240 Optical Sighting and Ranging Equipment

National Stock Number

1240-00-763-9257

Item Name Code

21859

Assigment Date

01/01/1962 (64 years ago)

2.242 inches nominal overall diameter, 0.370 inches nominal overall height, slotted face drive type, provided eccentric construction, 0.017 inches cell eccentricity from geometric axis

Product Characteristics

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

Overall Height: 0.370 inches nominal
Overall Diameter: 2.242 inches nominal
Drive Type: slotted face
Eccentric Construction: provided
Cell Eccentricity From Geometric Axis: 0.017 inches
Chamfer Location: both ends
Chamfer Size: 0.005 in. by 45 deg
Material: aluminum alloy 2024
Fsc Application Data: 1. telescope,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
7639257	Optical Element Cell

FAQs

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

What is the FSCG of the NSN 1240-00-763-9257?

The FSCG of the NSN 1240-00-763-9257 is 1240

Does the NSN 1240-00-763-9257 have a Schedule B code assigned?

Yes, the Schedule B code is 9803200000

Does NSN 1240-00-763-9257 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 1240-00-763-9257 contain precious materials?

Precious metal content is unknown

Does NSN 1240-00-763-9257 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 1240-00-763-9257 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962