NAS560HK4-10

View detailed technical data, stock status, and sourcing information for: NAS560HK4-10
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-904-3999

Item Name Code

06657

Assigment Date

06/22/1966 (60 years ago)

flat countersunk head style, 3a thread class, 0.425 inches minimum and 0.571 inches maximum thread length, 1.136 inches minimum and 1.181 inches maximum fastener length, 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: 0.425 inches minimum and 0.571 inches maximum
Fastener Length: 1.136 inches minimum and 1.181 inches maximum
Head Style: flat countersunk
Head Diameter: 0.452 inches minimum and 0.510 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 140000 pounds per square inch
Hardness Rating: 248.0 brinell standard minimum and 321.0 brinell standard maximum
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: iron alloy 660
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
NAS560HK4-10	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-904-3999?

The FSCG of the NSN 5305-00-904-3999 is 5305

Does the NSN 5305-00-904-3999 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-904-3999 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 5305-00-904-3999 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-904-3999 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 5305-00-904-3999 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Wed, Jun 22, 1966