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5306-01-308-2844

Find complete technical information, availability, and procurement data for: 5306-01-308-2844

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5306-01-308-2844
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-01-308-2844
Item Name Code
15903
Assigment Date
09/27/1989 (36 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

2.236 inches minimum and 2.266 inches maximum fastener length, dished hexagon head style, 3a thread class, right-hand thread direction, 0.438 inches nominal 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
0.438 inches nominal
Fastener Length
2.236 inches minimum and 2.266 inches maximum
Head Style
dished hexagon
Head Height
0.156 inches minimum and 0.171 inches maximum
Width Between Flats
0.492 inches minimum and 0.502 inches maximum
Grip Diameter
0.3110 inches minimum and 0.3120 inches maximum
Shank Unthreaded Hole Diameter
0.076 inches minimum and 0.086 inches maximum first hole
Nominal Thread Diameter
0.312 inches
Grip Length
1.803 inches minimum and 1.823 inches maximum
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
Distance From Head Largest Bearing Surface To Shank Hole Center
2.084 inches minimum and 2.094 inches maximum first hole
Material
steel overall
Material Document And Classification
mil-s-5000,4340 or e4340 mil spec single material response overall
Surface Treatment
cadmium overall
Surface Treatment Document And Classification
qq-p-416,ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator
unjf
Specification/Standard Data
80205-nas6205 professional/industrial association standard

Replaces National Stock Numbers

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

NSN Name Date
5306-01-614-1501 No Name Available 05/01/2013

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
NAS6205-29D Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-308-2844?
The FSCG of the NSN 5306-01-308-2844 is 5306
Does the NSN 5306-01-308-2844 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-01-308-2844 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 5306-01-308-2844 contain precious materials?
Item does not contain precious metal.
Does NSN 5306-01-308-2844 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 5306-01-308-2844 was assigned to the Federal Catalog?
It was assigned 36 years ago, on Wed, Sep 27, 1989

Professional Distribution

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Pricing

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ITAR Registered

In Stock

This item is currently available and ready for prompt shipment. Units may be offered in various conditions — new, surplus, or refurbished — and stored at verified global facilities. Request a quote to confirm current stock and delivery time.

New Surplus 220
New Material 1,110
As Removed 1
Total 1,331
Availability of this item was last updated on: 05/24/2026 08:05 AM EDT. Stock levels and pricing are subject to change.

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