5306-01-266-7791

Find complete technical information, availability, and procurement data for: 5306-01-266-7791
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-266-7791

Item Name Code

06676

Assigment Date

10/30/1987 (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.

3a thread class, 0.372 inches minimum and 0.493 inches maximum thread length, 32 concentric hole threads per inch, right-hand thread direction, 1.328 inches minimum and 1.358 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.

Threads Per Inch: 32 concentric hole
Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.372 inches minimum and 0.493 inches maximum
Fastener Length: 1.328 inches minimum and 1.358 inches maximum
Head Style: spline extended washer
Head Height: 0.194 inches minimum and 0.234 inches maximum
Extended Washer Diameter: 0.460 inches minimum and 0.470 inches maximum
Extended Washer Thickness: 0.026 inches minimum and 0.046 inches maximum
Head Minor Diameter: 0.297 inches minimum and 0.312 inches maximum
Internal Thread Length: 0.300 inches minimum and 0.345 inches maximum concentric hole
Nominal Thread Diameter: 0.250 inches
Thread Series: unjc concentric hole
Internal Thread Direction: right-hand concentric hole
Thread Quantity Per Inch: 28
Nominal Thread Size: 0.138 inches concentric hole
Internal Thread Class: 3b concentric hole
Material: steel comp xm-13 overall
Material Document And Classification: ams5629 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response overall
Style Designator: concentric hole threaded
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
11841-4-14-51	Internally Relieved Body Bolt
3M1043-4-14-51	Internally Relieved Body Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-266-7791?

The FSCG of the NSN 5306-01-266-7791 is 5306

Does the NSN 5306-01-266-7791 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-266-7791 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 5306-01-266-7791 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-266-7791 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 5306-01-266-7791 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Fri, Oct 30, 1987