GB511EB-8D50

View detailed technical data, stock status, and sourcing information for: GB511EB-8D50
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-218-7521

Item Name Code

15903

Assigment Date

10/18/1985 (40 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, 0.617 inches minimum and 0.664 inches maximum thread length, 3.742 inches minimum and 3.789 inches maximum fastener length, double hexagon head style

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: 0.617 inches minimum and 0.664 inches maximum
Fastener Length: 3.742 inches minimum and 3.789 inches maximum
Head Style: double hexagon
Head Height: 0.271 inches minimum and 0.291 inches maximum
Width Between Flats: 0.741 inches minimum and 0.752 inches maximum
Grip Diameter: 0.4982 inches minimum and 0.4991 inches maximum
Shank Unthreaded Hole Diameter: 0.101 inches minimum and 0.111 inches maximum first hole
Nominal Thread Diameter: 0.500 inches
Grip Length: 3.125 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.543 inches minimum and 3.575 inches maximum first hole
Surface Finish: 32.0 microinches grip
Material: steel comp h11 overall
Material Document And Classification: ams6487 assn std single material response overall
Surface Treatment: cadmium or cadmium and chromate overall
Surface Treatment Document And Classification: nas672 assn std 1st treatment response or mil-c-8837,ty2,cl2 mil spec 2nd treatment response 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
79894D8-50	Shear Bolt
AIC558-8D50	Shear Bolt
BM17035-8-50	Shear Bolt
GB511EB-8D50	Shear Bolt
H408F8D50	Shear Bolt
PBF1290-8D50	Shear Bolt
VCD0004-8-50FS	Shear Bolt
VCD004-8-50FS	Shear Bolt
VS3244F-8D50	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-218-7521?

The FSCG of the NSN 5306-01-218-7521 is 5306

Does the NSN 5306-01-218-7521 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-218-7521 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 5306-01-218-7521 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-218-7521 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 5306-01-218-7521 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Fri, Oct 18, 1985