5306-01-241-3911

Find complete technical information, availability, and procurement data for: 5306-01-241-3911
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-241-3911

Item Name Code

15903

Assigment Date

09/25/1986 (39 years ago)

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

double hexagon extended washer head style, right-hand thread direction, 3.200 inches minimum and 3.232 inches maximum fastener length, 3.200 inches minimum and 3.232 inches maximum thread length, 3a thread class

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: 3.200 inches minimum and 3.232 inches maximum
Fastener Length: 3.200 inches minimum and 3.232 inches maximum
Head Style: double hexagon extended washer
Head Height: 0.494 inches minimum and 0.514 inches maximum
Width Between Flats: 0.563 inches nominal
Extended Washer Diameter: 0.818 inches minimum and 0.828 inches maximum
Extended Washer Thickness: 0.113 inches minimum and 0.133 inches maximum
Hole Diameter: 0.050 inches minimum and 0.060 inches maximum
Grip Diameter: 0.4985 inches minimum and 0.4995 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 2.365 inches minimum and 2.385 inches maximum
Hole Quantity: 4
Hole Type: drilled
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Hole Configuration Style: double hexagon flats
Surface Finish: 32.0 microinches bearing surface of head
Surface Finish: 32.0 microinches grip
Material: steel comp 4340 overall
Material Document And Classification: mil-s-8844 cl 1 mil spec single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: ams 2401-3 assn std 1st treatment response and qq-p-416 ty 2 assn std 2nd 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
SS5211-8H38	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-241-3911?

The FSCG of the NSN 5306-01-241-3911 is 5306

Does the NSN 5306-01-241-3911 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-241-3911 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 5306-01-241-3911 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-241-3911 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 5306-01-241-3911 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Thu, Sep 25, 1986