521A20

View detailed technical data, stock status, and sourcing information for: 521A20
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5355 Knobs and Pointers

National Stock Number

5355-00-867-3590

Item Name Code

08194

Assigment Date

01/01/1960 (66 years ago)

A piece of transparent material specifically designed to be placed directly in front of a dial or scale to protect it from foreign matter. It is cut to size and may include a frame. It may have an index line or other marking. See also window, observation; and dial, scale.

center hole attachment method, 1.906 inches nominal length, squared corners special features, 1.500 inches nominal width, 0.040 inches nominal material thickness

Product Characteristics

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

Width: 1.500 inches nominal
Material Thickness: 0.040 inches nominal
Length: 1.906 inches nominal
Attachment Method: center hole
Special Features: squared corners
Color: black
Material: plastic acrylic
Style Designator: rectangular w/chamfered 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
521A20	Dial Window

FAQs

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

What is the FSCG of the NSN 5355-00-867-3590?

The FSCG of the NSN 5355-00-867-3590 is 5355

Does the NSN 5355-00-867-3590 have a Schedule B code assigned?

Yes, the Schedule B code is 7015900000

Does NSN 5355-00-867-3590 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 5355-00-867-3590 contain precious materials?

Precious metal content is unknown

Does NSN 5355-00-867-3590 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 5355-00-867-3590 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960