ST3M740-4L11

View detailed technical data, stock status, and sourcing information for: ST3M740-4L11
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-129-0580

Item Name Code

29294

Assigment Date

03/31/1982 (44 years ago)

right-hand thread direction, 1.142 inches minimum and 1.172 inches maximum fastener length, 0.444 inches minimum and 0.494 inches maximum thread length, 3a thread class, oval countersunk head style

Product Characteristics

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

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.444 inches minimum and 0.494 inches maximum
Fastener Length: 1.142 inches minimum and 1.172 inches maximum
Head Style: oval countersunk
Head Diameter: 0.390 inches minimum and 0.395 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.678 inches minimum and 0.698 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp 8740 overall
Material Document And Classification: mil-s-6049 mil spec single material response overall
Surface Treatment: aluminum and chromate overall
Surface Treatment Document And Classification: mil-c-83488 type 2 class 3 mil spec single treatment response overall
Thread Series Designator: unjf

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
10115191	Close Tolerance Screw
HT4052-4-11A	Close Tolerance Screw
HT4053-4-11	Close Tolerance Screw
HT4053-4-11A	Close Tolerance Screw
ST3M470-1L-11	Close Tolerance Screw
ST3M470-4L-11	Close Tolerance Screw
ST3M740-4-11	Close Tolerance Screw
ST3M740-4L-11	Close Tolerance Screw
ST3M740-4L11	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-129-0580?

The FSCG of the NSN 5305-01-129-0580 is 5305

Does the NSN 5305-01-129-0580 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-129-0580 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 5305-01-129-0580 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-129-0580 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 5305-01-129-0580 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Wed, Mar 31, 1982