5340-01-386-3978

Find complete technical information, availability, and procurement data for: 5340-01-386-3978
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-386-3978

Item Name Code

40280

Assigment Date

02/04/1994 (32 years ago)

A nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole. An integral feature is incorporated for locking.

right-hand right external thread direction, 0.188 inches nominal right external thread length, 1.125 inches nominal length, left-hand left internal (includes thru thread) thread direction, 0.250 inches minimum left internal (includes thru thread) thread length

Product Characteristics

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

Thread Direction: left-hand left internal (includes thru thread)
Thread Direction: right-hand right external
Thread Length: 0.250 inches minimum left internal (includes thru thread)
Thread Length: 0.188 inches nominal right external
Length: 1.125 inches nominal
Thread Quantity Per Inch: 40 left internal (includes thru thread)
Thread Quantity Per Inch: 40 right external
Nominal Thread Size: 0.112 inches left internal (includes thru thread)
Nominal Thread Size: 0.112 inches right external
Right Projection Diameter: 0.112 inches nominal
Right Projection Length: 0.184 inches minimum and 0.188 inches maximum
Special Features: exterior thd chamfered 0.030 in. by 45.0 deg w/ undercut at body; internal thd countersunk
Material: steel comp 303 or steel comp 303se or steel comp 203ez overall
Surface Treatment: passivate overall
Style Designator: left internal and right external thread
Thread Series Designator: unc left internal (includes thru thread)
Thread Series Designator: unc right external

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
NAS1829C4C18	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-386-3978?

The FSCG of the NSN 5340-01-386-3978 is 5340

Does NSN 5340-01-386-3978 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 5340-01-386-3978 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-386-3978 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 5340-01-386-3978 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Fri, Feb 4, 1994