5306-01-337-3264

Find complete technical information, availability, and procurement data for: 5306-01-337-3264
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-337-3264

Item Name Code

27851

Assigment Date

04/12/1991 (35 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.

2.567 inches minimum and 2.597 inches maximum fastener length, 1.005 inches nominal thread length, spline extended washer head style, right-hand thread direction, 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: 1.005 inches nominal
Fastener Length: 2.567 inches minimum and 2.597 inches maximum
Head Style: spline extended washer
Head Height: 0.552 inches minimum and 0.572 inches maximum
Extended Washer Diameter: 1.153 inches minimum and 1.163 inches maximum
Extended Washer Thickness: 0.080 inches minimum and 0.100 inches maximum
Hole Diameter: 0.050 inches minimum and 0.060 inches maximum
Grip Diameter: 0.623 inches minimum and 0.624 inches maximum
Head Minor Diameter: 0.673 inches minimum and 0.688 inches maximum
End Item Identification: pacer dawn
Nominal Thread Diameter: 0.6250 inches
Grip Length: 1.552 inches minimum and 1.572 inches maximum
Hole Quantity: 4
Hole Type: drilled
Thread Quantity Per Inch: 18
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Hole Configuration Style: spline
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Special Features: hole drilled in top center of head-0.470/0.519 in dia x 0.180 in nom deep
Material: steel overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: mil-c-8837,type ii,class 2 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
MS21297H10025	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-337-3264?

The FSCG of the NSN 5306-01-337-3264 is 5306

Does the NSN 5306-01-337-3264 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-337-3264 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 5306-01-337-3264 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-337-3264 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 5306-01-337-3264 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Fri, Apr 12, 1991