AN174C6

View detailed technical data, stock status, and sourcing information for: AN174C6
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-687-7708

Item Name Code

27851

Assigment Date

01/01/1960 (66 years ago)

3a thread class, 0.437 inches minimum and 0.516 inches maximum thread length, hexagon head style, 0.765 inches minimum and 0.812 inches maximum fastener length, 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: 0.437 inches minimum and 0.516 inches maximum
Fastener Length: 0.765 inches minimum and 0.812 inches maximum
Head Style: hexagon
Head Height: 0.140 inches minimum and 0.172 inches maximum
Width Between Flats: 0.428 inches minimum and 0.440 inches maximum
Grip Diameter: 0.2487 inches minimum and 0.2492 inches maximum
Shank Unthreaded Hole Diameter: 0.075 inches minimum and 0.086 inches maximum first hole
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.296 inches minimum and 0.328 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 0.609 inches minimum and 0.641 inches maximum first hole
Material: steel comp 431 overall
Material Document And Classification: mil-s-18732 mil spec single material response overall
Surface Treatment: passivate overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-337-2710	No Name Available	01/01/1960

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
932.19.60.427	Close Tolerance Bolt
AN174C6	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-687-7708?

The FSCG of the NSN 5306-00-687-7708 is 5306

Does the NSN 5306-00-687-7708 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-687-7708 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 5306-00-687-7708 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-687-7708 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 5306-00-687-7708 was assigned to the Federal Catalog?

It was assigned 66 years ago, on Fri, Jan 1, 1960