ST4M131-3

View detailed technical data, stock status, and sourcing information for: ST4M131-3
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-324-9454

Item Name Code

01869

Assigment Date

11/28/1973 (52 years ago)

0.560 inches nominal outside diameter, 0.180 inches nominal tapered key minor width, 0.391 inches minimum and 0.401 inches maximum hole diameter, 0.129 inches nominal distance from centerline to top of internal key, 0.082 inches nominal internal straight key width

Product Characteristics

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

Hole Diameter: 0.391 inches minimum and 0.401 inches maximum
Outside Diameter: 0.560 inches nominal
Tapered Key Minor Width: 0.180 inches nominal
Internal Straight Key Width: 0.082 inches nominal
Distance From Centerline To Top Of Internal Key: 0.129 inches nominal
Overall Distance Including Keys: 0.970 inches nominal
Material Thickness: 0.032 inches nominal
Material: aluminum alloy 2024 overall
Material Document And Classification: qq-a-250/5 alclad t42 fed spec single material response overall
Surface Treatment: anodize overall
Surface Treatment Document And Classification: mil-a-8625 mil spec single treatment response overall

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
10121309	Key Washer
ST4M131-3	Key Washer

FAQs

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

What is the FSCG of the NSN 5310-00-324-9454?

The FSCG of the NSN 5310-00-324-9454 is 5310

Does the NSN 5310-00-324-9454 have a Schedule B code assigned?

Yes, the Schedule B code is 7616108000

Does NSN 5310-00-324-9454 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 5310-00-324-9454 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-324-9454 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 5310-00-324-9454 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Wed, Nov 28, 1973