ST4M138-08-56

View detailed technical data, stock status, and sourcing information for: ST4M138-08-56
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-640-7940

Item Name Code

40280

Assigment Date

12/22/2014 (11 years ago)

A light, secondary structural member that does not completely partition various components such as the fuselage, boom, wing, and the like. It is designed to give cross-sectional shape and strength to the item of which it is a part.

right-hand right internal thread direction, 0.223 inches nominal left internal (includes thru thread) thread length, 2b right internal thread class, right-hand left internal (includes thru thread) thread direction, 2b left internal (includes thru thread) thread class

Product Characteristics

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

Thread Class: 2b left internal (includes thru thread)
Thread Class: 2b right internal
Thread Direction: right-hand right internal
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.223 inches nominal left internal (includes thru thread)
Thread Length: 0.223 inches nominal right internal
Length: 5.50 inches minimum and 5.70 inches maximum
End Item Identification: f-15 acft
Cross-Sectional Shape: hexagon
Width Across Flats: 0.312 inches nominal
Thread Quantity Per Inch: 32 left internal (includes thru thread)
Thread Quantity Per Inch: 32 right internal
Nominal Thread Size: 0.164 inches left internal (includes thru thread)
Nominal Thread Size: 0.164 inches right internal
Part Name Assigned By Controlling Agency: spacer,sleeve-hex,threaded,self
Left Countersink Angle: 115.0 degrees minimum and 125.0 degrees maximum
Right Countersink Angle: 115.0 degrees minimum and 125.0 degrees maximum
Special Features: helical insert ms21209c0815
Style Designator: left internal and right internal threads
Thread Series Designator: unc left internal (includes thru thread)
Thread Series Designator: unc right internal

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
ST4M138-08-56	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-640-7940?

The FSCG of the NSN 5340-01-640-7940 is 5340

Does NSN 5340-01-640-7940 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 5340-01-640-7940 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-640-7940 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-01-640-7940 was assigned to the Federal Catalog?

It was assigned 11 years ago, on Mon, Dec 22, 2014