220-24526-105

View detailed technical data, stock status, and sourcing information for: 220-24526-105
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-021-8357

Item Name Code

21861

Assigment Date

05/21/1976 (50 years ago)

An externally threaded fastener whose unthreaded portion is of a specified 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. 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. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

20 thread quantity per inch, 3a thread class, 3.830 inches nominal fastener length, 0.500 inches nominal thread diameter, 2.105 inches nominal distance from center of head to center of shank

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: 3.830 inches nominal
Distance From Center Of Head To Center Of Shank: 2.105 inches nominal
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Distance From Head Largest Bearing Surface To Shank Hole Center: 4.060 inches nominal first hole
Material: steel overall
Material Document And Classification: mil-s-5000,cond e1 mfr ref single material 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
220-24526-101	Eccentric Head Bolt
220-24526-105	Eccentric Head Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-021-8357?

The FSCG of the NSN 5306-01-021-8357 is 5306

Does the NSN 5306-01-021-8357 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-021-8357 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 5306-01-021-8357 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-021-8357 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 5306-01-021-8357 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Fri, May 21, 1976