NAS1005-26

View detailed technical data, stock status, and sourcing information for: NAS1005-26
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-944-7542

Item Name Code

01847

Assigment Date

03/01/1966 (60 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.

hexagon head style, 3a thread class, 0.632 inches minimum thread length, right-hand thread direction, 2.257 inches nominal 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: 0.632 inches minimum
Fastener Length: 2.257 inches nominal
Head Style: hexagon
Head Height: 0.188 inches nominal
Width Between Flats: 0.492 inches minimum and 0.501 inches maximum
Shank Unthreaded Hole Diameter: 0.076 inches nominal first hole
Nominal Thread Diameter: 0.312 inches
Grip Length: 1.625 inches nominal
Features Provided: finished head
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 140000 pounds per square inch
Distance From Head Largest Bearing Surface To Shank Hole Center: 1.984 inches nominal first hole
Special Features: tensile strength at room temperature
Material: iron alloy 660 overall
Material Document And Classification: ams5732 assn std single material response or ams5737 assn std single material response overall
Surface Treatment: passivate overall
Surface Treatment Document And Classification: mil-s-5002 mil spec single treatment response overall
Thread Series Designator: unf

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
NAS1005-26	Machine Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-944-7542?

The FSCG of the NSN 5306-00-944-7542 is 5306

Does the NSN 5306-00-944-7542 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-944-7542 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 5306-00-944-7542 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-944-7542 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 5306-00-944-7542 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Tue, Mar 1, 1966