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031537

031537

Optical Element Retainer

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.

drilled hole drive type, 3.720 inches nominal flange diameter, 4.445 inches nominal diameter, thread relief guide design, f-16 c/d acft end item identification

NSN: 1240-01-195-1945
Federal Supply Group: Fire Control Equipment
Federal Supply Classification: 1240 -Optical Sighting and Ranging Equipment
Item Identification Number: 01-195-1945
Requires Demilitarization?: Yes
INC: 22451
Assigment Date: Sat, Nov 24, 1984
Schedule B Code: 9803200000
End Item Identification: f-16 c/d acft
Diameter: 4.445 inches nominal
Drive Type: drilled hole
Flange Diameter: 3.720 inches nominal
Guide Design: thread relief
Guide Location: shoulder
Hole Or Slot Quantity: 11
Hole Diameter: 3.874 inches nominal
Internal Annular Serration: not provided
Material: aluminum alloy 2024
Overall Length: 0.205 inches nominal
Setscrew Notch: not provided
Shoulder Diameter: 3.525 inches nominal
Shoulder Length: 0.085 inches nominal
Style Designator: shouldered

Related Parts

Part Number	Manufacturer
031537	Qioptiq Ltd

Frequently Asked Questions

What is the FSCG of the NSN 1240-01-195-1945?: The FSCG of the NSN 1240-01-195-1945 is 1240

Does the NSN 1240-01-195-1945 have a Schedule B code assigned?: Yes, the Schedule B code is 9803200000

Does NSN 1240-01-195-1945 require demilitarization?: Usml items - mutilation to the point of scrap required worldwide. (note 7).

Does NSN 1240-01-195-1945 contain precious materials?: Item does not contain precious metal.

Does NSN 1240-01-195-1945 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.