74328-6-16

View detailed technical data, stock status, and sourcing information for: 74328-6-16
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-049-4027

Item Name Code

15903

Assigment Date

10/19/1977 (48 years ago)

A high strength, 160,000 pounds per square inch (1100 megapascals) minimum tensile strength externally threaded fastener designed for use in applications involving great shear stress. The head is designed to accommodate an external wrench or driver. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. The unthreaded portion is of specific grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. A locking feature may be incorporated in the design of the head or threads. See bolt, machine and bolt, clevis.

3a thread class, right-hand thread direction, 0.589 inches minimum and 0.639 inches maximum thread length, 1.599 inches minimum and 1.629 inches maximum fastener length, double hexagon w/hole head style

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: 0.589 inches minimum and 0.639 inches maximum
Fastener Length: 1.599 inches minimum and 1.629 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.378 inches minimum and 0.398 inches maximum
Width Between Flats: 0.430 inches minimum and 0.439 inches maximum
Extended Washer Diameter: 0.639 inches minimum and 0.649 inches maximum
Extended Washer Thickness: 0.081 inches minimum and 0.101 inches maximum
Grip Diameter: 0.3740 inches minimum and 0.3745 inches maximum
Nominal Thread Diameter: 0.375 inches
Grip Length: 0.990 inches minimum and 1.010 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 220000 pounds per square inch
Material: steel overall
Surface Treatment: passivate overall
Thread Series Designator: unjf
Specification/Standard Data: 76301-st3-571 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:

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74328-6-16	Shear Bolt
AIC752-6-16	Shear Bolt
BM3326-6-16	Shear Bolt
GS1030-6-16	Shear Bolt
MB84-6-16	Shear Bolt
PBF23T-6P16	Shear Bolt
S11-1059-6-16	Shear Bolt
S371-6-16	Shear Bolt
ST3M571-6-16	Shear Bolt
VAL23033-6-16	Shear Bolt
VS3060-6-16	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-049-4027?

The FSCG of the NSN 5306-01-049-4027 is 5306

Does the NSN 5306-01-049-4027 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-049-4027 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 5306-01-049-4027 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-049-4027 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 5306-01-049-4027 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Wed, Oct 19, 1977