HT239PB4-13

View detailed technical data, stock status, and sourcing information for: HT239PB4-13
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-620-2680

Item Name Code

29294

Assigment Date

02/22/1975 (51 years ago)

3a thread class, right-hand thread direction, 1.112 inches minimum and 1.159 inches maximum fastener length, flat countersunk head style, 0.290 inches minimum and 0.357 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: 0.290 inches minimum and 0.357 inches maximum
Fastener Length: 1.112 inches minimum and 1.159 inches maximum
Head Style: flat countersunk
Head Diameter: 0.390 inches minimum and 0.395 inches maximum
Grip Diameter: 0.2485 inches minimum and 0.2495 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.250 inches
Grip Length: 0.802 inches minimum and 0.822 inches maximum
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 100.0 degrees nominal
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Material: steel comp 4140 or steel comp e4340 or steel comp 6150 or steel comp 8735 or steel comp 8740 or steel comp 4130 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 2 fed spec single treatment response overall
Thread Series Designator: unjf
Specification/Standard Data: 26512-gb510l manufacturers standard

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
106750-4-13	Close Tolerance Screw
GB510L4-13	Close Tolerance Screw
HT239PB4-13	Close Tolerance Screw
HT8043-4-13	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-620-2680?

The FSCG of the NSN 5305-00-620-2680 is 5305

Does the NSN 5305-00-620-2680 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-620-2680 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 5305-00-620-2680 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-620-2680 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 5305-00-620-2680 was assigned to the Federal Catalog?

It was assigned 51 years ago, on Sat, Feb 22, 1975