C083-4-21

View detailed technical data, stock status, and sourcing information for: C083-4-21
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-143-9669

Item Name Code

15903

Assigment Date

01/15/1973 (53 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.

1.728 inches minimum and 1.758 inches maximum fastener length, double hexagon w/hole head style, 3a thread class, 0.406 inches minimum and 0.456 inches maximum thread length, right-hand thread direction

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: 0.406 inches minimum and 0.456 inches maximum
Fastener Length: 1.728 inches minimum and 1.758 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.234 inches nominal
Width Between Flats: 0.304 inches minimum and 0.313 inches maximum
Extended Washer Diameter: 0.428 inches minimum and 0.438 inches maximum
Extended Washer Thickness: 0.069 inches nominal
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.302 inches minimum and 1.322 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 260000 pounds per square inch
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: ams 2416 assn std single treatment response overall
Thread Series Designator: unjf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-196-4301	No Name Available	05/17/2012

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
11697A04U021	Shear Bolt
69680-4-021	Shear Bolt
AIC220EL4-21	Shear Bolt
C083-4-21	Shear Bolt
LWB22-4-21	Shear Bolt
STSBG004A04U021	Shear Bolt
VS2201F4-21	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-143-9669?

The FSCG of the NSN 5306-00-143-9669 is 5306

Does the NSN 5306-00-143-9669 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-143-9669 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 5306-00-143-9669 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-00-143-9669 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 5306-00-143-9669 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Mon, Jan 15, 1973