5306-00-208-8561

Find complete technical information, availability, and procurement data for: 5306-00-208-8561
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-208-8561

Item Name Code

27851

Assigment Date

01/01/1963 (63 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

hexagon head style, 6.500 inches nominal fastener length, 2.344 inches maximum thread length, 3a thread class, right-hand thread direction

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: 2.344 inches maximum
Fastener Length: 6.500 inches nominal
Head Style: hexagon
Head Height: 2.000 inches nominal
Width Between Flats: 3.645 inches minimum and 3.750 inches maximum
Grip Diameter: 2.4960 inches minimum and 2.4970 inches maximum
Nominal Thread Diameter: 2.500 inches
Grip Length: 4.031 inches nominal
Thread Quantity Per Inch: 8
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp 4130 overall
Material Document And Classification: mil-s-6758 mil spec single material response overall
Thread Series Designator: un

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
C89573-2	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-208-8561?

The FSCG of the NSN 5306-00-208-8561 is 5306

Does the NSN 5306-00-208-8561 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-208-8561 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 5306-00-208-8561 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-208-8561 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 5306-00-208-8561 was assigned to the Federal Catalog?

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