5855-00-010-5231

Find complete technical information, availability, and procurement data for: 5855-00-010-5231
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Federal Supply Group

Communication, Detection, and Coherent Radiation Equipment

Federal Supply Classification

5855 Emitted and Reflected Radiation Night Vision Equipment

National Stock Number

5855-00-010-5231

Item Name Code

22451

Assigment Date

11/01/1967 (58 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.

0.562 inches nominal width, 1.567 inches nominal recess depth, 2.325 inches nominal overall length, 3.952 inches nominal recess diameter, 3.631 inches minimum and 3.633 inches maximum hole diameter

Product Characteristics

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

Hole Diameter: 3.631 inches minimum and 3.633 inches maximum
Width: 0.562 inches nominal
Overall Length: 2.325 inches nominal
Recess Diameter: 3.952 inches nominal
Recess Depth: 1.567 inches nominal
Diameter: 4.312 inches minimum and 4.344 inches maximum
Thread Size: 3.875-32
Depth: 0.222 inches nominal
Drive Type: knurl
Drive Facility Angular Spacing In Deg: 18.0
Guide Design: thread chamfer
Guide Location: drive edge
Internal Annular Serration: not provided
Setscrew Notch: not provided
Material: aluminum alloy 6061
Surface Treatment: enamel and anodize
Style Designator: recessed
Fsc Application Data: night vision equip.

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
SC-D-599156	Optical Element Retainer
SC-D-5999156	Optical Element Retainer

FAQs

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

What is the FSCG of the NSN 5855-00-010-5231?

The FSCG of the NSN 5855-00-010-5231 is 5855

Does the NSN 5855-00-010-5231 have a Schedule B code assigned?

Yes, the Schedule B code is 9014900000

Does NSN 5855-00-010-5231 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5855-00-010-5231 contain precious materials?

Item does not contain precious metal.

Does NSN 5855-00-010-5231 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 5855-00-010-5231 was assigned to the Federal Catalog?

It was assigned 58 years ago, on Wed, Nov 1, 1967