5340-01-386-7839

Find complete technical information, availability, and procurement data for: 5340-01-386-7839
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-386-7839

Item Name Code

40280

Assigment Date

02/15/1994 (32 years ago)

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. The threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. For items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

0.148 inches minimum and 0.152 inches maximum hole diameter, 0.433 inches minimum and 0.443 inches maximum length, right-hand left internal (includes thru thread) thread direction, 2b left internal (includes thru thread) thread class, 0.438 inches nominal 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 Class: 2b left internal (includes thru thread)
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.438 inches nominal left internal (includes thru thread)
Hole Diameter: 0.148 inches minimum and 0.152 inches maximum
Length: 0.433 inches minimum and 0.443 inches maximum
Cross-Sectional Shape: hexagon
Width Across Flats: 0.244 inches minimum and 0.256 inches maximum
Thread Quantity Per Inch: 40 left internal (includes thru thread)
Nominal Thread Size: 0.112 inches left internal (includes thru thread)
Right Projection Diameter: 0.185 inches minimum and 0.188 inches maximum
Right Projection Length: 0.102 inches minimum and 0.108 inches maximum
Material: steel comp 303se or steel comp 203ez overall
Material Document And Classification: astm a582 assn std all material responses overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Style Designator: projection one end left internal thread
Thread Series Designator: unc left internal (includes thru thread)
Specification/Standard Data: 80205-nas1830 professional/industrial association 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
NAS1830C03B07	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-386-7839?

The FSCG of the NSN 5340-01-386-7839 is 5340

Does NSN 5340-01-386-7839 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 5340-01-386-7839 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-386-7839 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 5340-01-386-7839 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Tue, Feb 15, 1994