5306-00-638-4278

Find complete technical information, availability, and procurement data for: 5306-00-638-4278
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-638-4278

Item Name Code

15903

Assigment Date

01/01/1963 (63 years ago)

1.672 inches nominal fastener length, right-hand thread direction, 3a thread class, 0.422 inches minimum thread length, hexagon head style

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: 0.422 inches minimum
Fastener Length: 1.672 inches nominal
Head Style: hexagon
Head Height: 0.250 inches nominal
Width Between Flats: 0.750 inches nominal
Grip Diameter: 0.4991 inches nominal
Shank Unthreaded Hole Diameter: 0.106 inches nominal first hole
Single Shear Strength: 18650 pounds per square inch
Nominal Thread Diameter: 0.500 inches
Grip Length: 1.250 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.500 inches nominal first hole
Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 or steel comp 4037 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response or mil-s-8695 mil spec 6th material response overall
Surface Treatment: cadmium and chromate head
Surface Treatment: cadmium and chromate threads
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec all treatment responses head
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec all treatment responses threads
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-207-1043	No Name Available	01/01/1960

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
NAS464-8-20	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-638-4278?

The FSCG of the NSN 5306-00-638-4278 is 5306

Does the NSN 5306-00-638-4278 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-638-4278 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 5306-00-638-4278 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-638-4278 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 5306-00-638-4278 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963