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5306-00-143-2781

Find complete technical information, availability, and procurement data for: 5306-00-143-2781

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5306-00-143-2781
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-143-2781
Item Name Code
15903
Assigment Date
10/09/1968 (57 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.

double hexagon head style, right-hand thread direction, 3a thread class, 0.394 inches minimum and 0.461 inches maximum thread length, 1.966 inches minimum and 2.013 inches maximum fastener 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
0.394 inches minimum and 0.461 inches maximum
Fastener Length
1.966 inches minimum and 2.013 inches maximum
Head Style
double hexagon
Head Height
0.200 inches minimum and 0.220 inches maximum
Width Between Flats
0.553 inches minimum and 0.564 inches maximum
Grip Diameter
0.3733 inches minimum and 0.3742 inches maximum
Shank Unthreaded Hole Diameter
0.106 inches nominal first hole
Nominal Thread Diameter
0.375 inches
Grip Length
1.552 inches minimum and 1.572 inches maximum
Thread Quantity Per Inch
24
Minimum Tensile Strength
260000 pounds per square inch
Hardness Rating
51.0 rockwell c minimum and 54.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center
1.838 inches minimum and 1.858 inches maximum first hole
Material
steel comp h11 overall
Material Document And Classification
ams 6485 assn std single material response or ams6487 assn std single material response overall
Surface Treatment
nickel and cadmium overall
Surface Treatment Document And Classification
ams 2416 assn std all treatment responses 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
AIC926-6-25 Shear Bolt
C878-6-25 Shear Bolt
EWSB926-6-25 Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-143-2781?
The FSCG of the NSN 5306-00-143-2781 is 5306
Does the NSN 5306-00-143-2781 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-143-2781 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 5306-00-143-2781 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-143-2781 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 5306-00-143-2781 was assigned to the Federal Catalog?
It was assigned 57 years ago, on Wed, Oct 9, 1968

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