1028961-139

View detailed technical data, stock status, and sourcing information for: 1028961-139
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-422-2527

Item Name Code

16282

Assigment Date

08/03/1970 (55 years ago)

0.455 inches minimum and 0.641 inches maximum thread length, flat chamfer head style, right-hand thread direction, 3a thread class, 0.609 inches minimum and 0.641 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: 0.455 inches minimum and 0.641 inches maximum
Fastener Length: 0.609 inches minimum and 0.641 inches maximum
Head Style: flat chamfer
Head Diameter: 0.735 inches minimum and 0.750 inches maximum
Head Height: 0.492 inches minimum and 0.500 inches maximum
Locking Feature: pellet or strip threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.500 inches
Width Across Flats: 0.375 inches nominal
Thread Quantity Per Inch: 13
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 130000 pounds per square inch
Material: steel overall
Material Document And Classification: 66 fed std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec single treatment response overall
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 6 type
Departure From Cited Designator: as modified by locking feature

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
1028961-139	Socket Head Cap Screw
202-693-139	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-422-2527?

The FSCG of the NSN 5305-00-422-2527 is 5305

Does the NSN 5305-00-422-2527 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-422-2527 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 5305-00-422-2527 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-422-2527 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 5305-00-422-2527 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Mon, Aug 3, 1970