ST3M431C4M4

View detailed technical data, stock status, and sourcing information for: ST3M431C4M4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5310 Nuts and Washers

National Stock Number

5310-00-279-9256

Item Name Code

05280

Assigment Date

09/14/1973 (52 years ago)

prevailing torque all metal design locking feature, right-hand thread direction, 3b thread class, 0.254 inches minimum nut counterbore diameter, dry film lubricant lubrication

Product Characteristics

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

Thread Class: 3b
Thread Direction: right-hand
Locking Feature: prevailing torque all metal design
Counterbore Diameter: 0.254 inches minimum nut
Lubrication: dry film lubricant
Mounting Hole Diameter: 0.098 inches minimum and 0.103 inches maximum
Nut Style: plate
Nut Length: 1.306 inches maximum
Nut Height: 0.469 inches maximum
Plate Thickness: 0.025 inches nominal
Plate Width: 0.531 inches maximum
Nut Counterbore Depth: 0.250 inches minimum nut
Nut Mounting Provision: straight holes
Mounting Hole Arrangement Style: 2 holes
Distance From Aperture Center To Mounting Hole Center: 0.495 inches minimum and 0.505 inches maximum
Center To Center Distance Between Mounting Holes Along Length: 0.310 inches minimum and 0.314 inches maximum
Thread Series: unf
Features Provided: floating nut
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.250 inches
Material: iron alloy 660 overall
Material Document And Classification: ams 5525 assn std single material response or ams 5735 assn std single material response overall
Specification/Standard Data: 76301-st3-431 manufacturers standard

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
F1972M01-4-4	Plate Self-Locking Nut
ST3M431C4M4	Plate Self-Locking Nut

FAQs

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

What is the FSCG of the NSN 5310-00-279-9256?

The FSCG of the NSN 5310-00-279-9256 is 5310

Does the NSN 5310-00-279-9256 have a Schedule B code assigned?

Yes, the Schedule B code is 7318160000

Does NSN 5310-00-279-9256 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 5310-00-279-9256 contain precious materials?

Precious metal content is unknown

Does NSN 5310-00-279-9256 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 5310-00-279-9256 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Sep 14, 1973