HT8137-5-7AS

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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-283-4588

Item Name Code

29294

Assigment Date

08/26/1973 (52 years ago)

0.952 inches minimum and 0.999 inches maximum fastener length, 0.504 inches minimum and 0.571 inches maximum thread length, right-hand thread direction, flat countersunk undercut head style, 3a thread class

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: 0.504 inches minimum and 0.571 inches maximum
Fastener Length: 0.952 inches minimum and 0.999 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.629 inches minimum and 0.634 inches maximum
Head Height: 0.088 inches minimum and 0.090 inches maximum
Grip Diameter: 0.3115 inches minimum and 0.3120 inches maximum
Internal Drive Style: high-torque
Nominal Thread Diameter: 0.312 inches
Grip Length: 0.428 inches minimum and 0.448 inches maximum
Thread Quantity Per Inch: 24
Countersink Angle: 99.5 degrees minimum and 100.5 degrees maximum
Surface Finish: 32.0 microinches grip
Surface Finish: 32.0 microinches threads
Special Features: furnished with one o-ring seal
Material: titanium alloy overall
Material Document And Classification: nas621 comp 6al-4v assn std single material response or ams4928 assn std single material 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
110179-5-7AS	Close Tolerance Screw
BM33024V5-7U	Close Tolerance Screw
HT271A5-7	Close Tolerance Screw
HT8137-5-7AS	Close Tolerance Screw
ST3M430V5-7AS	Close Tolerance Screw

FAQs

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

What is the FSCG of the NSN 5305-00-283-4588?

The FSCG of the NSN 5305-00-283-4588 is 5305

Does the NSN 5305-00-283-4588 have a Schedule B code assigned?

Yes, the Schedule B code is 8109900000

Does NSN 5305-00-283-4588 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 5305-00-283-4588 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-283-4588 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 5305-00-283-4588 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Sun, Aug 26, 1973