5306-00-180-0520

Find complete technical information, availability, and procurement data for: 5306-00-180-0520
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-180-0520

Item Name Code

27851

Assigment Date

01/01/1963 (63 years ago)

4.078 inches nominal fastener length, right-hand thread direction, 0.640 inches minimum thread length, 3a thread class, 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: 0.640 inches minimum
Fastener Length: 4.078 inches nominal
Head Style: hexagon
Head Height: 0.203 inches minimum and 0.235 inches maximum
Width Between Flats: 0.553 inches minimum and 0.565 inches maximum
Grip Diameter: 0.3737 inches minimum and 0.3742 inches maximum
Shank Unthreaded Hole Diameter: 0.106 inches minimum first hole
Nominal Thread Diameter: 0.375 inches
Grip Length: 3.438 inches nominal
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.876 inches nominal first hole
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Material: steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4037 or steel comp 4140 or steel comp 4130 overall
Material Document And Classification: mil-s-6049 mil spec 1st material response or mil-s-6050 mil spec 2nd material response or mil-s-6098 mil spec 3rd material response or ams 6300 assn std 4th material response or mil-s-5626 mil spec 5th material response or mil-s-6758 mil spec 6th material response 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
AN176-40	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-180-0520?

The FSCG of the NSN 5306-00-180-0520 is 5306

Does the NSN 5306-00-180-0520 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-180-0520 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 5306-00-180-0520 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-180-0520 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 5306-00-180-0520 was assigned to the Federal Catalog?

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