5306-00-370-7139

Find complete technical information, availability, and procurement data for: 5306-00-370-7139
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-370-7139

Item Name Code

04905

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

right-hand thread direction, 4.593 inches nominal fastener length, round w/wrench flats head style, 3a thread class, 1.250 inches minimum 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: 1.250 inches minimum
Fastener Length: 4.593 inches nominal
Head Style: round w/wrench flats
Head Diameter: 1.625 inches nominal
Head Height: 0.344 inches nominal
Width Between Flats: 1.330 inches nominal
Shoulder Diameter: 0.995 inches minimum and 0.997 inches maximum first shoulder
Shoulder Length: 2.031 inches nominal first shoulder
Nominal Thread Diameter: 0.750 inches
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 42.0 rockwell c maximum overall
Shoulder Shape: round first shoulder
Material: steel comp e4340 overall
Material Document And Classification: mil-s-5000 mil spec single material response overall
Surface Treatment: cadmium 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
89WM1744-1	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-370-7139?

The FSCG of the NSN 5306-00-370-7139 is 5306

Does the NSN 5306-00-370-7139 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-370-7139 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 5306-00-370-7139 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-370-7139 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 5306-00-370-7139 was assigned to the Federal Catalog?

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