51B464-4-18

View detailed technical data, stock status, and sourcing information for: 51B464-4-18
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-048-6080

Item Name Code

15903

Assigment Date

09/29/1977 (48 years ago)

0.296 inches minimum and 0.357 inches maximum thread length, 3a thread class, right-hand thread direction, hexagon head style, 1.431 inches minimum and 1.472 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: 0.296 inches minimum and 0.357 inches maximum
Fastener Length: 1.431 inches minimum and 1.472 inches maximum
Head Style: hexagon
Head Height: 0.120 inches minimum and 0.140 inches maximum
Width Between Flats: 0.428 inches minimum and 0.440 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches nominal first hole
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.115 inches minimum and 1.135 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.315 inches minimum and 1.356 inches maximum first hole
Material: steel comp e4340 or steel comp 4340 or steel comp 4140 or steel comp 8740 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
Specification/Standard Data: 76823-51b464 professional/industrial association standard

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
51B464-4-18	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-048-6080?

The FSCG of the NSN 5306-01-048-6080 is 5306

Does the NSN 5306-01-048-6080 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-048-6080 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 5306-01-048-6080 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-048-6080 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 5306-01-048-6080 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Thu, Sep 29, 1977