MS21250-05018

View detailed technical data, stock status, and sourcing information for: MS21250-05018
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-949-3769

Item Name Code

15903

Assigment Date

04/15/1966 (60 years ago)

right-hand thread direction, 3a thread class, 0.579 inches minimum and 0.619 inches maximum thread length, double hexagon w/hole head style, 1.714 inches minimum and 1.734 inches maximum 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: 0.579 inches minimum and 0.619 inches maximum
Fastener Length: 1.714 inches minimum and 1.734 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.338 inches minimum and 0.358 inches maximum
Width Between Flats: 0.367 inches minimum and 0.376 inches maximum
Extended Washer Diameter: 0.521 inches minimum and 0.531 inches maximum
Extended Washer Thickness: 0.072 inches minimum and 0.092 inches maximum
Grip Diameter: 0.3110 inches minimum and 0.3120 inches maximum
Single Shear Strength: 108000 pounds per square inch
Nominal Thread Diameter: 0.312 inches
Grip Length: 1.115 inches minimum and 1.135 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 overall
Material Document And Classification: mil-s-5626 mil spec 1st material response or mil-s-5000 mil spec 2nd material response or mil-s-8503 mil spec 3rd material response or mil-s-6098 mil spec 4th material response or mil-s-6049 mil spec 5th material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Thread Series Designator: unjf

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
5306PL0946402	Shear Bolt
MS21250-05018	Shear Bolt
VFK100G-05018	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-949-3769?

The FSCG of the NSN 5306-00-949-3769 is 5306

Does the NSN 5306-00-949-3769 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-949-3769 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 5306-00-949-3769 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-949-3769 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 5306-00-949-3769 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Fri, Apr 15, 1966