VS3218-4-21

View detailed technical data, stock status, and sourcing information for: VS3218-4-21
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for part VS3218-4-21 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-258-8201

Item Name Code

15903

Assigment Date

07/08/1987 (39 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.

right-hand thread direction, 3a thread class, 0.330 inches minimum and 0.360 inches maximum fastener length, hexagon head style, 0.488 inches minimum and 0.493 inches maximum thread 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: 0.488 inches minimum and 0.493 inches maximum
Fastener Length: 0.330 inches minimum and 0.360 inches maximum
Head Style: hexagon
Head Height: 0.250 inches minimum and 0.265 inches maximum
Width Between Flats: 0.836 inches nominal
Grip Diameter: 0.4985 inches minimum and 0.4995 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 0.167 inches minimum and 0.182 inches maximum
Thread Quantity Per Inch: 20
Material: steel overall
Thread Series Designator: unj

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
ST3M807-4-21	Shear Bolt
VS3218-4-21	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-258-8201?

The FSCG of the NSN 5306-01-258-8201 is 5306

Does the NSN 5306-01-258-8201 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-258-8201 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 5306-01-258-8201 contain precious materials?

Precious metal content is unknown

Does NSN 5306-01-258-8201 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 5306-01-258-8201 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Wed, Jul 8, 1987