AN174-67A

View detailed technical data, stock status, and sourcing information for: AN174-67A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-587-2652

Item Name Code

27851

Assigment Date

12/28/1974 (51 years ago)

3a thread class, 6.890 inches minimum and 6.937 inches maximum fastener length, hexagon head style, right-hand thread direction, 0.436 inches minimum and 0.515 inches maximum thread 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: 0.436 inches minimum and 0.515 inches maximum
Fastener Length: 6.890 inches minimum and 6.937 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
Nominal Thread Diameter: 0.375 inches
Grip Length: 6.422 inches minimum and 6.454 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Surface Finish: 63.0 microinches bearing surface of head
Surface Finish: 63.0 microinches grip
Material: steel comp 4140 or steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec all treatment responses overall
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
AN174-67A	Close Tolerance Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-587-2652?

The FSCG of the NSN 5306-00-587-2652 is 5306

Does the NSN 5306-00-587-2652 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-587-2652 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 5306-00-587-2652 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-587-2652 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 5306-00-587-2652 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sat, Dec 28, 1974