MB156-8-61F

View detailed technical data, stock status, and sourcing information for: MB156-8-61F
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-269-5128

Item Name Code

15903

Assigment Date

12/17/1987 (38 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.

4.564 inches minimum and 4.594 inches maximum fastener length, 3a thread class, 0.742 inches minimum and 0.792 inches maximum thread length, spline extended washer head style, right-hand thread direction

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: 0.742 inches minimum and 0.792 inches maximum
Fastener Length: 4.564 inches minimum and 4.594 inches maximum
Head Style: spline extended washer
Head Height: 0.440 inches minimum and 0.460 inches maximum
Extended Washer Diameter: 0.922 inches minimum and 0.932 inches maximum
Extended Washer Thickness: 0.062 inches minimum and 0.082 inches maximum
Grip Diameter: 0.498 inches minimum and 0.499 inches maximum
Head Minor Diameter: 0.547 inches minimum and 0.562 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 3.802 inches minimum and 3.822 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 220000 pounds per square inch
Special Features: longitudinal hole 0.350 in. min and 0.390 in. max. diameter,0.161 in. min. deep located in center of head
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: aluminum and chromate overall
Surface Treatment Document And Classification: mil-c-83488,ty2,cl3 mil spec single 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
122897-8-61F	Shear Bolt
AIC763-8-61F	Shear Bolt
MB156-8-61F	Shear Bolt
PBF1267-8-61F	Shear Bolt
S343-8-61F	Shear Bolt
ST3M753-8-61F	Shear Bolt
VFK600-8-61F	Shear Bolt
VS3190-8-61F	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-269-5128?

The FSCG of the NSN 5306-01-269-5128 is 5306

Does the NSN 5306-01-269-5128 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-269-5128 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 5306-01-269-5128 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-269-5128 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 5306-01-269-5128 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Thu, Dec 17, 1987