NAS1624E28

View detailed technical data, stock status, and sourcing information for: NAS1624E28
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-322-1025

Item Name Code

06657

Assigment Date

06/28/1990 (36 years ago)

0.316 inches nominal thread length, 3a thread class, 2.051 inches minimum and 2.081 inches maximum fastener length, right-hand thread direction, flat countersunk head style

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: 0.316 inches nominal
Fastener Length: 2.051 inches minimum and 2.081 inches maximum
Head Style: flat countersunk
Head Diameter: 0.442 inches minimum and 0.510 inches maximum
Internal Drive Style: torque set
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 24.0 rockwell c minimum and 35.0 rockwell c maximum
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: iron alloy 660
Screw Material Document And Classification: ams 5737 assn std single material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Bearing Surface Of Head Surface Finish: 32.0 microinches
Shank Surface Finish: 32.0 microinches
Thread Surface Finish: 32.0 microinches
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1624 professional/industrial association 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
NAS1624E28	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-322-1025?

The FSCG of the NSN 5305-01-322-1025 is 5305

Does the NSN 5305-01-322-1025 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-322-1025 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 5305-01-322-1025 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-322-1025 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 5305-01-322-1025 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Thu, Jun 28, 1990