5306-01-027-6401

Find complete technical information, availability, and procurement data for: 5306-01-027-6401
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-027-6401

Item Name Code

27851

Assigment Date

09/19/1976 (49 years ago)

A screw, machine or screw, cap, socket head whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 in.) (0.025 mm) or less of a specific diameter for items (1.000 in.) (25 mm) or less in diameter. Items over (1.000 in.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 in.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 in.) (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. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

3.339 inches minimum and 3.386 inches maximum fastener length, 0.517 inches minimum and 0.584 inches maximum thread length, right-hand thread direction, double hexagon head style, 3a thread class

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: 0.517 inches minimum and 0.584 inches maximum
Fastener Length: 3.339 inches minimum and 3.386 inches maximum
Head Style: double hexagon
Head Height: 0.340 inches minimum and 0.360 inches maximum
Width Between Flats: 0.928 inches minimum and 0.940 inches maximum
Grip Diameter: 0.6235 inches minimum and 0.6240 inches maximum
Shank Unthreaded Hole Diameter: 0.141 inches minimum and 0.146 inches maximum first hole
Nominal Thread Diameter: 0.625 inches
Grip Length: 2.802 inches minimum and 2.822 inches maximum
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 125000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.205 inches minimum and 3.272 inches maximum first hole
Material: steel overall
Material Document And Classification: 23-112,mcdonnel douglas corp mfr ref single material 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
MB145-10D45	Close Tolerance Bolt
ST3M729-10D45	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-027-6401?

The FSCG of the NSN 5306-01-027-6401 is 5306

Does the NSN 5306-01-027-6401 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-027-6401 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 5306-01-027-6401 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-027-6401 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 5306-01-027-6401 was assigned to the Federal Catalog?

It was assigned 49 years ago, on Sun, Sep 19, 1976