ST3M730-4-38

View detailed technical data, stock status, and sourcing information for: ST3M730-4-38
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-182-4279

Item Name Code

29294

Assigment Date

06/23/1984 (42 years ago)

A metallic or nonmetallic item, headed at one end, with a cylindrically shaped shank which may be tapered, grooved, or threaded. A locking collar or sleeve may be provided to perform the same holding action as the clinching portion of a conventional rivet. The shank may include an external wrenching facility which breaks off at a predetermined applied torque.

3a thread class, 2.785 inches minimum and 2.815 inches maximum fastener length, 0.400 inches minimum and 0.450 inches maximum thread length, flat countersunk head style, right-hand thread direction

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: 0.400 inches minimum and 0.450 inches maximum
Fastener Length: 2.785 inches minimum and 2.815 inches maximum
Head Style: flat countersunk
Head Diameter: 0.464 inches minimum and 0.506 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: 2.365 inches minimum and 2.385 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,ty 2,cl 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
10115554	Close Tolerance Screw
HLT4054-4-38A	Close Tolerance Screw
HT4054-38A	Close Tolerance Screw
HT4054-4-38	Close Tolerance Screw
HT4054-4-38A	Close Tolerance Screw
ST3M730-4-38	Close Tolerance Screw
ST3M730-4L38	Close Tolerance Screw
WC4054-438A	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-01-182-4279?

The FSCG of the NSN 5305-01-182-4279 is 5305

Does the NSN 5305-01-182-4279 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-182-4279 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 5305-01-182-4279 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-182-4279 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 5305-01-182-4279 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Sat, Jun 23, 1984