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5306-00-040-9750

Find complete technical information, availability, and procurement data for: 5306-00-040-9750

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5306-00-040-9750
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5306 Bolts
National Stock Number
5306-00-040-9750
Item Name Code
15903
Assigment Date
11/17/1972 (53 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.

right-hand thread direction, 3a thread class, double hexagon w/hole head style, 3.645 inches nominal fastener length, 0.635 inches minimum and 0.655 inches maximum 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
0.635 inches minimum and 0.655 inches maximum
Fastener Length
3.645 inches nominal
Head Style
double hexagon w/hole
Head Height
0.388 inches nominal
Width Between Flats
0.430 inches minimum and 0.439 inches maximum
Extended Washer Diameter
0.639 inches minimum and 0.649 inches maximum
Extended Washer Thickness
0.091 inches nominal
Hole Diameter
0.055 inches nominal
Grip Diameter
0.3735 inches minimum and 0.3745 inches maximum
Nominal Thread Diameter
0.375 inches
Grip Length
2.990 inches minimum and 3.010 inches maximum
Hole Quantity
4
Hole Type
drilled
Thread Quantity Per Inch
24
Minimum Tensile Strength
180000 pounds per square inch
Hardness Rating
39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Hole Configuration Style
double hexagon longitudinal hole
Surface Finish
32.0 microinches bearing surface of head
Surface Finish
32.0 microinches grip
Material
steel comp 4140 or steel comp e4340 or steel comp 8740 or steel comp 6150 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-6049 mil spec 3rd material response or mil-s-8503 mil spec 4th material response overall
Surface Treatment
cadmium and chromate overall
Surface Treatment Document And Classification
qq-p-416 ty 2 cl 2 fed spec single treatment response overall
Thread Series Designator
unjf

Related Parts

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Part Number Name
MS21250H06048 Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-040-9750?
The FSCG of the NSN 5306-00-040-9750 is 5306
Does the NSN 5306-00-040-9750 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5306-00-040-9750 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 5306-00-040-9750 contain precious materials?
Precious metal content is unknown
Does NSN 5306-00-040-9750 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 5306-00-040-9750 was assigned to the Federal Catalog?
It was assigned 53 years ago, on Fri, Nov 17, 1972

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