AN7H21

View detailed technical data, stock status, and sourcing information for: AN7H21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-639-5996

Item Name Code

01847

Assigment Date

01/01/1963 (63 years ago)

hexagon head style, 2.219 inches nominal fastener length, 3a thread class, 0.657 inches minimum thread 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: 0.657 inches minimum
Fastener Length: 2.219 inches nominal
Head Style: hexagon
Head Height: 0.234 inches minimum and 0.266 inches maximum
Width Between Flats: 0.615 inches minimum and 0.627 inches maximum
Hole Diameter: 0.070 inches nominal
Shank Unthreaded Hole Diameter: 0.106 inches nominal first hole
Nominal Thread Diameter: 0.438 inches
Grip Length: 1.562 inches nominal
Hole Quantity: 1
Hole Type: drilled
Features Provided: finished head
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum overall
Hole Configuration Style: hexagon flats
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.046 inches nominal first hole
Material: steel comp 4037 or steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740 or steel comp 4140 overall
Material Document And Classification: mil-b-6812 mil spec all material responses 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
AN7H21	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-639-5996?

The FSCG of the NSN 5306-00-639-5996 is 5306

Does the NSN 5306-00-639-5996 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-639-5996 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 5306-00-639-5996 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-639-5996 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 5306-00-639-5996 was assigned to the Federal Catalog?

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