5306-00-437-4278

Find complete technical information, availability, and procurement data for: 5306-00-437-4278
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-437-4278

Item Name Code

15903

Assigment Date

09/10/1969 (56 years ago)

dished hexagon head style, 0.188 inches minimum and 0.203 inches maximum head height, 3.813 inches minimum and 3.843 inches maximum fastener length, 0.553 inches minimum and 0.603 inches maximum thread length, 3a thread class

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 Length: 0.553 inches minimum and 0.603 inches maximum
Fastener Length: 3.813 inches minimum and 3.843 inches maximum
Head Style: dished hexagon
Head Height: 0.188 inches minimum and 0.203 inches maximum
Width Between Flats: 0.553 inches minimum and 0.564 inches maximum
Hole Diameter: 0.070 inches nominal
Grip Diameter: 0.3735 inches minimum and 0.3745 inches maximum
Shank Unthreaded Hole Diameter: 0.106 inches minimum and 0.116 inches maximum first hole
Nominal Thread Diameter: 0.375 inches
Hole Quantity: 3
Hole Type: drilled
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Hole Configuration Style: hexagon corners
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.606 inches minimum and 3.656 inches maximum first hole
Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 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 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty2 cl2 fed spec single treatment response overall
Thread Series Designator: unjf

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
NAS1306-52DH	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-437-4278?

The FSCG of the NSN 5306-00-437-4278 is 5306

Does the NSN 5306-00-437-4278 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-437-4278 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 5306-00-437-4278 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-437-4278 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 5306-00-437-4278 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Wed, Sep 10, 1969