5306-01-121-0342

Find complete technical information, availability, and procurement data for: 5306-01-121-0342
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-121-0342

Item Name Code

15903

Assigment Date

10/29/1981 (44 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

0.385 inches minimum and 0.425 inches maximum thread length, 1.020 inches minimum and 1.040 inches maximum fastener length, double hexagon w/hole 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: 0.385 inches minimum and 0.425 inches maximum
Fastener Length: 1.020 inches minimum and 1.040 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.255 inches minimum and 0.275 inches maximum
Width Between Flats: 0.240 inches minimum and 0.260 inches maximum
Extended Washer Diameter: 0.340 inches minimum and 0.360 inches maximum
Extended Washer Thickness: 0.045 inches minimum and 0.065 inches maximum
Grip Diameter: 0.1885 inches minimum and 0.1895 inches maximum
Nominal Thread Diameter: 0.190 inches
Grip Length: 0.615 inches minimum and 0.635 inches maximum
Thread Quantity Per Inch: 32
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 8740 or steel comp 6150 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 2 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
MS21250-03010	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-121-0342?

The FSCG of the NSN 5306-01-121-0342 is 5306

Does the NSN 5306-01-121-0342 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-121-0342 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 5306-01-121-0342 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-121-0342 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 5306-01-121-0342 was assigned to the Federal Catalog?

It was assigned 44 years ago, on Thu, Oct 29, 1981