55S139M2

View detailed technical data, stock status, and sourcing information for: 55S139M2
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Federal Supply Group

Nonmetallic Fabricated Materials

Federal Supply Classification

9340 Glass Fabricated Materials

National Stock Number

9340-00-180-7774

Item Name Code

16880

Assigment Date

10/28/1970 (55 years ago)

5.313 inches minimum and 5.406 inches maximum overall diameter, fine finished surface finish, 1 ply quantity, clear material transparency, 0.563 inches minimum and 0.688 inches maximum overall thickness

Product Characteristics

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

Ply Quantity: 1
Overall Diameter: 5.313 inches minimum and 5.406 inches maximum
Overall Thickness: 0.563 inches minimum and 0.688 inches maximum
Surface Finish: fine finished
Material Transparency: clear
Material: glass
Style Designator: circular

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
55S0139M-0010	Observation Window
55S139M-001	Observation Window
55S139M2	Observation Window

FAQs

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

What is the FSCG of the NSN 9340-00-180-7774?

The FSCG of the NSN 9340-00-180-7774 is 9340

Does the NSN 9340-00-180-7774 have a Schedule B code assigned?

Yes, the Schedule B code is 7016900000

Does NSN 9340-00-180-7774 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 9340-00-180-7774 contain precious materials?

Item does not contain precious metal.

Does NSN 9340-00-180-7774 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 9340-00-180-7774 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Oct 28, 1970