HT409A4-25

View detailed technical data, stock status, and sourcing information for: HT409A4-25
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-302-9687

Item Name Code

22846

Assigment Date

10/14/1973 (52 years ago)

2.015 inches minimum and 2.062 inches maximum fastener length, flat countersunk undercut head style, 0.443 inches minimum and 0.510 inches maximum thread length, 3a thread class, 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: 0.443 inches minimum and 0.510 inches maximum
Fastener Length: 2.015 inches minimum and 2.062 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.501 inches minimum and 0.506 inches maximum
Head Height: 0.065 inches minimum and 0.067 inches maximum
Shoulder Diameter: 0.264 inches minimum and 0.265 inches maximum first shoulder
Shoulder Length: 1.451 inches minimum and 1.473 inches maximum first shoulder
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Countersink Angle: 100.0 degrees minimum
Shoulder Shape: round first shoulder
Special Features: furnished with o ring
Material: steel overall
Material Document And Classification: 3-52 fsc-76301 mfr ref single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: 3-52 fsc-76301 mfr ref single treatment response overall
Thread Series Designator: unf

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
3M50-4-25	Shoulder Screw
54267-4-25	Shoulder Screw
HT409A4-25	Shoulder Screw
HT41UA25	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-302-9687?

The FSCG of the NSN 5305-00-302-9687 is 5305

Does the NSN 5305-00-302-9687 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-302-9687 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 5305-00-302-9687 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-302-9687 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 5305-00-302-9687 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sun, Oct 14, 1973