NK4-13A

View detailed technical data, stock status, and sourcing information for: NK4-13A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-117-9897

Item Name Code

01847

Assigment Date

10/16/1968 (57 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.

right-hand thread direction, 3a thread class, 1.390 inches minimum and 1.437 inches maximum fastener length, hexagon head style, 0.436 inches minimum and 0.515 inches maximum 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: 3a
Thread Direction: right-hand
Thread Length: 0.436 inches minimum and 0.515 inches maximum
Fastener Length: 1.390 inches minimum and 1.437 inches maximum
Head Style: hexagon
Head Height: 0.140 inches minimum and 0.172 inches maximum
Width Between Flats: 0.428 inches minimum and 0.440 inches maximum
Locking Feature: pellet threads
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.922 inches minimum and 0.954 inches maximum
Features Provided: finished head
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Material: steel comp 4037 or steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740 or steel comp 4140 overall
Material Document And Classification: mil-b-6812 mil spec all material responses overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec all treatment responses overall
Thread Series Designator: unf

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
NK4-13	Machine Bolt
NK4-13A	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-117-9897?

The FSCG of the NSN 5306-00-117-9897 is 5306

Does the NSN 5306-00-117-9897 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-117-9897 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 5306-00-117-9897 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-117-9897 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 5306-00-117-9897 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Wed, Oct 16, 1968