1240-01-123-4820

Find complete technical information, availability, and procurement data for: 1240-01-123-4820

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1240-01-123-4820
Federal Supply Group
Fire Control Equipment
Federal Supply Classification
1240 Optical Sighting and Ranging Equipment
National Stock Number
1240-01-123-4820
Item Name Code
21859
Assigment Date
12/12/1981 (44 years ago)

A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see cell, optical element. Excludes:ring, externally threaded.

not provided eccentric construction, internal thread location

Product Characteristics

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

Thread Location
internal
Eccentric Construction
not provided

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
E108 Optical Element Cell

FAQs

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

What is the FSCG of the NSN 1240-01-123-4820?
The FSCG of the NSN 1240-01-123-4820 is 1240
Does the NSN 1240-01-123-4820 have a Schedule B code assigned?
Yes, the Schedule B code is 9803200000
Does NSN 1240-01-123-4820 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 1240-01-123-4820 contain precious materials?
Item does not contain precious metal.
Does NSN 1240-01-123-4820 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 1240-01-123-4820 was assigned to the Federal Catalog?
It was assigned 44 years ago, on Sat, Dec 12, 1981

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