5306-01-431-8750

Find complete technical information, availability, and procurement data for: 5306-01-431-8750
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-431-8750

Item Name Code

06666

Assigment Date

05/21/1996 (30 years ago)

A relatively thin metallic item, having a concave or cupped contour, designed to effect its own seal by compression against the circumference of a hole. It is used as a blowout plug in boilers, engines, and the like to relieve the pressure created by the expansion of fluids caused by heat or freezing.

flat fillister head style, 0.625 inches nominal head height, 0.622 inches minimum and 0.624 inches maximum head diameter, 6.678 inches minimum and 6.698 inches maximum fastener length, 3a thread class

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
Fastener Length: 6.678 inches minimum and 6.698 inches maximum
Head Style: flat fillister
Head Diameter: 0.622 inches minimum and 0.624 inches maximum
Head Height: 0.625 inches nominal
Hole Diameter: 0.055 inches nominal
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.625 inches
Width Across Flats: 0.5005 inches minimum and 0.5035 inches maximum
Hole Quantity: 4
Hole Type: drilled
Thread Quantity Per Inch: 18
Hardness Rating: 34.0 rockwell c minimum and 40.0 rockwell c maximum overall
Hole Configuration Style: round
Material: steel overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: qq-p-416tii,c2 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
52108-34	Internal Wrenching Bolt
MS20010H92	Internal Wrenching Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-431-8750?

The FSCG of the NSN 5306-01-431-8750 is 5306

Does the NSN 5306-01-431-8750 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-431-8750 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 5306-01-431-8750 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-431-8750 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 5306-01-431-8750 was assigned to the Federal Catalog?

It was assigned 30 years ago, on Tue, May 21, 1996