S4928913-4-31

View detailed technical data, stock status, and sourcing information for: S4928913-4-31
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-359-2295

Item Name Code

27851

Assigment Date

06/01/1992 (34 years ago)

An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

0.316 inches nominal thread length, right-hand thread direction, 3a thread class, dished hexagon head style, 2.239 inches minimum and 2.269 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.

Thread Class: 3a
Thread Direction: right-hand
Thread Length: 0.316 inches nominal
Fastener Length: 2.239 inches minimum and 2.269 inches maximum
Head Style: dished hexagon
Head Height: 0.125 inches minimum and 0.140 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Grip Diameter: 0.2483 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches minimum and 0.086 inches maximum first hole
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.928 inches minimum and 1.948 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 95000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.128 inches minimum and 2.148 inches maximum first hole
Surface Finish: 32.0 microinches first shoulder63.0 microinches bearing surface of head63.0 microinches grip32.0 microinches threads
Material: steel comp e4340 or steel comp 4140 or steel comp 8740 or steel comp 8735 or steel comp 6150 overall
Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-8503 mil spec 5th material response overall
Surface Treatment: chromium bearing surface of headcadmium sides of headchromium gripcadmium top of headcadmium threads
Surface Treatment Document And Classification: dps.9.84,ty 1,cage 88277 mfr ref single treatment response bearing surface of headdps.9.74,ty 1,cage 88277 mfr ref single treatment response sides of headdps.9.84,ty 1,cage 88277 mfr ref single treatment response gripdps.9.74,ty 1,cage 88277 mfr ref single treatment response top of headdps.9.74,ty 1,cage 88277 mfr ref single treatment response threads
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
S4928913-4-31	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-359-2295?

The FSCG of the NSN 5306-01-359-2295 is 5306

Does the NSN 5306-01-359-2295 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-359-2295 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 5306-01-359-2295 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-359-2295 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 5306-01-359-2295 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Mon, Jun 1, 1992