MILS24240-4

View detailed technical data, stock status, and sourcing information for: MILS24240-4
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-186-6540

Item Name Code

01847

Assigment Date

03/09/1973 (53 years ago)

3a thread class, double hexagon extended washer head style, right-hand thread direction, 2.250 inches nominal fastener length, 1.687 inches minimum 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: 1.687 inches minimum
Fastener Length: 2.250 inches nominal
Head Style: double hexagon extended washer
Head Height: 0.492 inches minimum and 0.500 inches maximum
Width Between Flats: 0.495 inches minimum and 0.503 inches maximum
Extended Washer Diameter: 0.735 inches minimum and 0.750 inches maximum
Extended Washer Thickness: 0.208 inches minimum and 0.228 inches maximum
Nominal Thread Diameter: 0.500 inches
Features Provided: finished head
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
Minimum Yield Strength: 130000 pounds per square inch
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response 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
J58 0.500-20UNF-3A X 2.250	Machine Bolt
M24240-4-20818	Machine Bolt
MILS24240-4	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-186-6540?

The FSCG of the NSN 5306-00-186-6540 is 5306

Does the NSN 5306-00-186-6540 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-186-6540 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 5306-00-186-6540 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-186-6540 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 5306-00-186-6540 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Fri, Mar 9, 1973