NAS428HK5A12

View detailed technical data, stock status, and sourcing information for: NAS428HK5A12
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-813-3179

Item Name Code

01847

Assigment Date

01/01/1962 (64 years ago)

crowned hexagon head style, right-hand thread direction, 1.188 inches minimum and 1.219 inches maximum thread length, 3a thread class, 1.250 inches nominal fastener 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: 1.188 inches minimum and 1.219 inches maximum
Fastener Length: 1.250 inches nominal
Head Style: crowned hexagon
Head Height: 0.172 inches nominal
Width Between Flats: 0.500 inches nominal
Hole Diameter: 0.070 inches nominal
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.031 inches minimum and 0.062 inches maximum
Hole Quantity: 1
Hole Type: drilled
Features Provided: finished head
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
Hole Configuration Style: hexagon flats
Special Features: slot in shank end
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,type 2,class 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
NAS428HK5A12	Machine Bolt
NAS428KH5-12	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-813-3179?

The FSCG of the NSN 5306-00-813-3179 is 5306

Does the NSN 5306-00-813-3179 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-813-3179 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 5306-00-813-3179 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-813-3179 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 5306-00-813-3179 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962