40918-1

View detailed technical data, stock status, and sourcing information for: 40918-1
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-335-2897

Item Name Code

06659

Assigment Date

03/07/1991 (35 years ago)

right-hand thread direction, 1.016 inches minimum and 1.066 inches maximum thread length, dished hexagon head style, 3a thread class, 3.776 inches minimum and 3.806 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: 1.016 inches minimum and 1.066 inches maximum
Fastener Length: 3.776 inches minimum and 3.806 inches maximum
Head Style: dished hexagon
Head Height: 0.375 inches minimum and 0.390 inches maximum
Width Between Flats: 1.052 inches minimum and 1.064 inches maximum
Washer Quantity: 1
Shank Unthreaded Hole Diameter: 0.141 inches minimum and 0.151 inches maximum first hole
Nominal Thread Diameter: 0.750 inches
Features Provided: spacer
Thread Quantity Per Inch: 16
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum fastener
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.514 inches minimum and 3.564 inches maximum first hole
Primary Washer Outside Diameter: 1.250 inches nominal
Primary Washer Style: flat
Primary Washer Material Thickness: 0.062 inches nominal
Material: steel comp 1330 or steel comp 4130 primary washer
Material: steel comp e4340 or steel comp 4140 or steel comp 6150 or steel comp 8735 or steel comp 8740 fastener
Material Document And Classification: fed 66 fed std all material responses primary washer
Surface Treatment: cadmium and chromate fastener
Surface Treatment Document And Classification: qq-p-416 ty 2,cl 2 fed spec single treatment response fastener
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
40918-1	Assembled Washer Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-335-2897?

The FSCG of the NSN 5306-01-335-2897 is 5306

Does the NSN 5306-01-335-2897 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-335-2897 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 5306-01-335-2897 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-335-2897 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 5306-01-335-2897 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Thu, Mar 7, 1991