X3638

View detailed technical data, stock status, and sourcing information for: X3638
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-281-4705

Item Name Code

01847

Assigment Date

01/01/1961 (65 years ago)

5.990 inches minimum and 6.010 inches maximum fastener length, hexagon head style, right-hand thread direction, 1.490 inches minimum and 1.510 inches maximum thread length, 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: 1.490 inches minimum and 1.510 inches maximum
Fastener Length: 5.990 inches minimum and 6.010 inches maximum
Head Style: hexagon
Head Height: 0.490 inches minimum and 0.510 inches maximum
Width Between Flats: 0.740 inches minimum and 0.760 inches maximum
Nominal Thread Diameter: 0.500 inches
Features Provided: finished head
Thread Quantity Per Inch: 13
Hardness Rating: 32.1 rockwell c minimum and 36.6 rockwell c maximum overall
Material: steel comp 8640 overall
Material Document And Classification: sae assn std single material response overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-263-7652	No Name Available	02/01/1986
5306-00-362-0510	No Name Available	01/01/1963

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
174787	Machine Bolt
600R27	Machine Bolt
8713864	Machine Bolt
CC21006	Machine Bolt
X3638	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-281-4705?

The FSCG of the NSN 5306-00-281-4705 is 5306

Does the NSN 5306-00-281-4705 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-281-4705 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 5306-00-281-4705 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-281-4705 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 5306-00-281-4705 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961