803-5001048 PIECE 77

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-367-9255

Item Name Code

06676

Assigment Date

11/21/1992 (33 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.

hexagon head style, 1.860 inches minimum and 1.890 inches maximum fastener length, 0.425 inches minimum and 0.455 inches maximum thread length, 2a thread class, 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: 2a
Thread Direction: right-hand
Thread Length: 0.425 inches minimum and 0.455 inches maximum
Fastener Length: 1.860 inches minimum and 1.890 inches maximum
Head Style: hexagon
Head Height: 1.435 inches nominal
Width Between Flats: 1.250 inches nominal
Counterbore Diameter: 0.437 inches minimum and 0.440 inches maximum
Counterbore Depth: 0.435 inches nominal
Concentric Hole Diameter: 0.781 inches minimum and 0.782 inches maximum
Nominal Thread Diameter: 1.125 inches
Thread Quantity Per Inch: 12
Special Features: counterbore diameter 0.781 inches min and 0.782 inches max length is 1.425 inches min and 1.455 inches max
Material: nickel alloy 400 overall
Material Document And Classification: qq-n-281 cl a fed spec single material response overall
Style Designator: counterbore unthreaded
Thread Series Designator: unf

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
803-5001048 PIECE 77	Internally Relieved Body Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-367-9255?

The FSCG of the NSN 5306-01-367-9255 is 5306

Does the NSN 5306-01-367-9255 have a Schedule B code assigned?

Yes, the Schedule B code is 7508900000

Does NSN 5306-01-367-9255 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 5306-01-367-9255 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-367-9255 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 5306-01-367-9255 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Sat, Nov 21, 1992