4557450

View detailed technical data, stock status, and sourcing information for: 4557450
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Federal Supply Group

Nonmetallic Fabricated Materials

Federal Supply Classification

9340 Glass Fabricated Materials

National Stock Number

9340-00-958-0259

Item Name Code

16880

Assigment Date

01/01/1962 (64 years ago)

A switch which is externally actuated by a lever and whose contacts open and close with an instantaneous (snap) action; includes items having one or more momentary positions. Includes switches (snap action) which use mercury to bridge contacts, and assemblages of complete switches (snap action) having common actuators. Excludes:switch,lever; switch,rotary; switch,knife; switch,sensitive; and switch,box.

1 ply quantity, weather resistant environmental protection, 4.438 inches nominal overall length, 0.125 inches nominal overall thickness, 3.188 inches nominal overall width

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 Length: 4.438 inches nominal
Overall Width: 3.188 inches nominal
Overall Thickness: 0.125 inches nominal
Environmental Protection: weather resistant
Surface Finish: polished
Material Transparency: clear
Material: glass
Style Designator: square corners

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
1720B PC997	Observation Window
1720B-997	Observation Window
1720B997	Observation Window
4557450	Observation Window

FAQs

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

What is the FSCG of the NSN 9340-00-958-0259?

The FSCG of the NSN 9340-00-958-0259 is 9340

Does the NSN 9340-00-958-0259 have a Schedule B code assigned?

Yes, the Schedule B code is 7016900000

Does NSN 9340-00-958-0259 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 9340-00-958-0259 contain precious materials?

Item does not contain precious metal.

Does NSN 9340-00-958-0259 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 9340-00-958-0259 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962