A51B20586-17

View detailed technical data, stock status, and sourcing information for: A51B20586-17
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-571-9417

Item Name Code

04905

Assigment Date

12/04/1974 (51 years ago)

3a thread class, 1.827 inches minimum and 1.832 inches maximum fastener length, 0.407 inches nominal thread length, round w/wrench flats head style, right-hand thread direction

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: 0.407 inches nominal
Fastener Length: 1.827 inches minimum and 1.832 inches maximum
Head Style: round w/wrench flats
Head Diameter: 0.938 inches nominal
Head Height: 0.125 inches nominal
Width Between Flats: 0.865 inches minimum and 0.877 inches maximum
Shoulder Diameter: 0.5601 inches minimum and 0.5607 inches maximum first shoulder
Shoulder Length: 1.420 inches minimum and 1.425 inches maximum first shoulder
Shank Unthreaded Hole Diameter: 0.106 inches minimum and 0.116 inches maximum first hole
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Hardness Rating: 46.0 rockwell c minimum and 49.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.632 inches nominal first hole
Shoulder Shape: round first shoulder
Part Name Assigned By Controlling Agency: navy special project
Material Document And Classification: g-1010,fscm 26512 mfr ref single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: mil-c-8837,type 2,class 1 mil 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
A51B20586-17	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-571-9417?

The FSCG of the NSN 5306-00-571-9417 is 5306

Does NSN 5306-00-571-9417 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 5306-00-571-9417 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-571-9417 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 5306-00-571-9417 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Wed, Dec 4, 1974