5306-00-639-4278

Find complete technical information, availability, and procurement data for: 5306-00-639-4278
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-639-4278

Item Name Code

01847

Assigment Date

01/01/1963 (63 years ago)

An item designed to permanently fasten a socket, snap fastener to a material. It may be either hemispherical in shape with prongs on the underside or have a hemispherical shaped head with a tubular shank. See also socket, snap fastener.

0.669 inches minimum and 0.740 inches maximum thread length, 0.740 inches minimum and 0.760 inches maximum fastener length, 0.320 inches minimum and 0.340 inches maximum head height, right-hand thread direction, double hexagon extended washer head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand
Thread Length: 0.669 inches minimum and 0.740 inches maximum
Fastener Length: 0.740 inches minimum and 0.760 inches maximum
Head Style: double hexagon extended washer
Head Height: 0.320 inches minimum and 0.340 inches maximum
Width Between Flats: 0.304 inches minimum and 0.313 inches maximum
Extended Washer Diameter: 0.428 inches minimum and 0.448 inches maximum
Extended Washer Thickness: 0.060 inches minimum and 0.070 inches maximum
Hole Diameter: 0.065 inches nominal
Nominal Thread Diameter: 0.250 inches
Hole Quantity: 4
Hole Type: drilled
Features Provided: finished head
Nonstandard Thread Pitch Diameter: +0.2213 to 0.2238 inches
Thread Quantity Per Inch: 28
Hardness Rating: 30.0 rockwell c minimum and 38.0 rockwell c maximum overall
Hole Configuration Style: double hexagon longitudinal hole
Criticality Code Justification: feat
Surface Finish: 32.0 microinches threads
Surface Finish: 63.0 microinches bearing surface of head
Special Features: form,fit,function
Material: steel corrosion resisting overall
Material Document And Classification: ams 5616 assn std single material response overall
Precious Material: silver
Surface Treatment: silver threads
Surface Treatment Document And Classification: ams 2410 assn std single treatment response threads
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
275779	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-639-4278?

The FSCG of the NSN 5306-00-639-4278 is 5306

Does the NSN 5306-00-639-4278 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-639-4278 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 5306-00-639-4278 contain precious materials?

Item contains silver.

Does NSN 5306-00-639-4278 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 5306-00-639-4278 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963