5306-01-238-4497

Find complete technical information, availability, and procurement data for: 5306-01-238-4497
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-238-4497

Item Name Code

15903

Assigment Date

08/14/1986 (39 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, 2.863 inches minimum and 2.893 inches maximum fastener length, 3a thread class, dished hexagon head style, 0.878 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: 0.878 inches nominal
Fastener Length: 2.863 inches minimum and 2.893 inches maximum
Head Style: dished hexagon
Head Height: 0.219 inches minimum and 0.234 inches maximum
Width Between Flats: 0.679 inches minimum and 0.690 inches maximum
Locking Feature: retainer threads
Grip Diameter: 0.4363 inches minimum and 0.4370 inches maximum
Nominal Thread Diameter: 0.437 inches
Grip Length: 1.990 inches minimum and 2.010 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 48.0 rockwell c minimum spring35.0 rockwell c minimum and 39.0 rockwell c maximum stand-off
Special Features: all other components passivated per qq-p-35; pins and plug cres 303 cond a or b per astm a581; point dia 0.369-0.372,0.402-0.412 lg
Material: steel comp 631 springsteel comp 630 stand-offsteel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150 fastener
Material Document And Classification: ams 5673 assn std single material response springams 5643 assn std single material response stand-offmil-s-5000 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-8503 mil spec 5th material response fastener
Surface Treatment: passivate springpassivate stand-offcadmium and chromate fastener
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response springqq-p-35 fed spec single treatment response stand-offqq-p-416 ty 2 cl 3 fed spec single treatment response fastener
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
BACB30ST7-32	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-238-4497?

The FSCG of the NSN 5306-01-238-4497 is 5306

Does the NSN 5306-01-238-4497 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-238-4497 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 5306-01-238-4497 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-238-4497 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 5306-01-238-4497 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Aug 14, 1986