HT51UA23

View detailed technical data, stock status, and sourcing information for: HT51UA23
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-302-9731

Item Name Code

22846

Assigment Date

10/14/1973 (52 years ago)

flat countersunk undercut head style, right-hand thread direction, 1.953 inches minimum and 2.000 inches maximum fastener length, 3a thread class, 0.505 inches minimum and 0.572 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: 0.505 inches minimum and 0.572 inches maximum
Fastener Length: 1.953 inches minimum and 2.000 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.628 inches minimum and 0.633 inches maximum
Head Height: 0.081 inches minimum and 0.083 inches maximum
Shoulder Diameter: 0.327 inches minimum and 0.328 inches maximum first shoulder
Shoulder Length: 1.300 inches minimum and 1.322 inches maximum first shoulder
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Countersink Angle: 100.0 degrees minimum
Shoulder Shape: round first shoulder
Special Features: furnished with o ring
Material: steel overall
Material Document And Classification: 3-53 fsc-76301 mfr ref single material response overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: 3-53 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
3M51-5-23	Shoulder Screw
54267-5-23	Shoulder Screw
HT404A5-23	Shoulder Screw
HT51UA23	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-00-302-9731?

The FSCG of the NSN 5305-00-302-9731 is 5305

Does the NSN 5305-00-302-9731 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-302-9731 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 5305-00-302-9731 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-302-9731 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 5305-00-302-9731 was assigned to the Federal Catalog?

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