A51B92504-13

View detailed technical data, stock status, and sourcing information for: A51B92504-13
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-003-6571

Item Name Code

04905

Assigment Date

05/26/1972 (54 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes:thumbscrew.

1.687 inches nominal head diameter, 1.000 inches minimum thread length, round w/wrench flats chamfered head style, 3a thread class, 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: 1.000 inches minimum
Head Style: round w/wrench flats chamfered
Head Diameter: 1.687 inches nominal
Head Height: 0.150 inches nominal
Width Between Flats: 1.568 inches nominal
Shoulder Diameter: 1.3725 inches minimum and 1.3740 inches maximum first shoulder
Shoulder Length: 2.270 inches minimum and 2.275 inches maximum first shoulder
Nominal Thread Diameter: 0.750 inches
Thread Quantity Per Inch: 16
Hardness Rating: 46.0 rockwell c minimum and 49.0 rockwell c maximum overall
Shoulder Shape: round first shoulder
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp d6ac overall
Material Document And Classification: mil-s-8949,cond f mil spec 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
A51B92504-13	Shoulder Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-003-6571?

The FSCG of the NSN 5306-00-003-6571 is 5306

Does the NSN 5306-00-003-6571 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-003-6571 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 5306-00-003-6571 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-003-6571 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 5306-00-003-6571 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Fri, May 26, 1972