A11900

View detailed technical data, stock status, and sourcing information for: A11900

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A11900
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-01-187-1085
Item Name Code
22451
Assigment Date
08/18/1984 (41 years ago)

12 hole or slot quantity, not provided internal annular serration, drilled hole drive type, 1.190 inches nominal recess depth, 2.190 inches nominal recess diameter

Product Characteristics

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

Hole Or Slot Quantity
12
Recess Diameter
2.190 inches nominal
Recess Depth
1.190 inches nominal
Drive Type
drilled hole
Internal Annular Serration
not provided
Setscrew Notch
not provided
Special Features
material is per astm-a569 or astm-a366; surface treatment is per tt-e-489
Material
steel
Surface Treatment
enamel

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
12337485 Optical Element Retainer
A11900 Optical Element Retainer

FAQs

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

What is the FSCG of the NSN 1240-01-187-1085?
The FSCG of the NSN 1240-01-187-1085 is 1240
Does the NSN 1240-01-187-1085 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-01-187-1085 require demilitarization?
Usml items - mutilation to the point of scrap required worldwide. (note 7).
Does NSN 1240-01-187-1085 contain precious materials?
Item does not contain precious metal.
Does NSN 1240-01-187-1085 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 1240-01-187-1085 was assigned to the Federal Catalog?
It was assigned 41 years ago, on Sat, Aug 18, 1984

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