1720B PC997

View detailed technical data, stock status, and sourcing information for: 1720B PC997
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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.

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

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