5340-01-398-3707

Find complete technical information, availability, and procurement data for: 5340-01-398-3707
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-398-3707

Item Name Code

40280

Assigment Date

10/31/1994 (31 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.

2b left internal (includes thru thread) thread class, right-hand left internal (includes thru thread) thread direction, 2a right external thread class, 0.250 inches nominal right external thread length, right-hand right external 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: 2a right external
Thread Class: 2b left internal (includes thru thread)
Thread Direction: right-hand right external
Thread Direction: right-hand left internal (includes thru thread)
Thread Length: 0.250 inches nominal right external
Thread Length: 0.188 inches nominal left internal (includes thru thread)
Length: 0.688 inches nominal
Cross-Sectional Shape: hexagon
Width Across Flats: 0.188 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: 0.250 inches nominal
Material: copper alloy overall
Material Document And Classification: qq-b-626 comp 360 1/2 hard fed spec single material response overall
Surface Treatment: nickel overall
Surface Treatment Document And Classification: qq-n-290 cl 1 ty 6 fed spec single treatment response 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
14010-H-B-688-9	Spacing Threaded Standoff
9998-7036-005	Spacing Threaded Standoff

FAQs

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

What is the FSCG of the NSN 5340-01-398-3707?

The FSCG of the NSN 5340-01-398-3707 is 5340

Does NSN 5340-01-398-3707 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 5340-01-398-3707 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-398-3707 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 5340-01-398-3707 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Mon, Oct 31, 1994