HS2623-4Z-17X

View detailed technical data, stock status, and sourcing information for: HS2623-4Z-17X
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-448-4631

Item Name Code

29294

Assigment Date

01/13/1971 (55 years ago)

0.371 inches minimum and 0.438 inches maximum thread length, 3a thread class, right-hand thread direction, flat countersunk head style, 1.443 inches minimum and 1.490 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: 0.371 inches minimum and 0.438 inches maximum
Fastener Length: 1.443 inches minimum and 1.490 inches maximum
Head Style: flat countersunk
Head Diameter: 0.497 inches minimum and 0.507 inches maximum
Grip Diameter: 0.2641 inches minimum and 0.2651 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Grip Length: 1.052 inches minimum and 1.072 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 220000 pounds per square inch
Hardness Rating: 46.0 rockwell c minimum and 50.0 rockwell c maximum overall
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: navy special project
Material: steel comp h11 overall
Material Document And Classification: ams 6487 assn std single material response overall
Surface Treatment: cadmium 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
66908H4-17	Close Tolerance Screw
HS2623-4Z-17X	Close Tolerance Screw
HT307-4-17	Close Tolerance Screw
HT8115-4-17X	Close Tolerance Screw
ST3M559-4-17	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-448-4631?

The FSCG of the NSN 5305-00-448-4631 is 5305

Does the NSN 5305-00-448-4631 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-448-4631 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 5305-00-448-4631 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-448-4631 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 5305-00-448-4631 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, Jan 13, 1971