CHT4067-4-7AY

View detailed technical data, stock status, and sourcing information for: CHT4067-4-7AY
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-338-7304

Item Name Code

22846

Assigment Date

05/10/1991 (35 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.

0.469 inches nominal thread length, 3a thread class, flat countersunk undercut head style, right-hand thread direction, 0.890 inches minimum and 0.937 inches maximum 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: 0.469 inches nominal
Fastener Length: 0.890 inches minimum and 0.937 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.477 inches minimum and 0.508 inches maximum
Head Height: 0.582 inches minimum and 0.602 inches maximum
Shoulder Diameter: 0.2807 inches minimum and 0.2997 inches maximum first shoulder
Shoulder Length: 0.3788 inches nominal first shoulder
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Features Provided: o ring and cetyl alcohol lubricant
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 125000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Shoulder Shape: round first shoulder
Material: steel comp xm-13 overall
Material Document And Classification: ams 5629 assn std single material response overall
Surface Treatment: aluminum and chromate overall
Surface Treatment Document And Classification: mil-s-83488,ty2,cl3 mil spec single treatment 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
CHT4067-4-7AY	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-338-7304?

The FSCG of the NSN 5305-01-338-7304 is 5305

Does the NSN 5305-01-338-7304 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-338-7304 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 5305-01-338-7304 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-338-7304 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 5305-01-338-7304 was assigned to the Federal Catalog?

It was assigned 35 years ago, on Fri, May 10, 1991