5305-01-251-2339

Find complete technical information, availability, and procurement data for: 5305-01-251-2339
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-251-2339

Item Name Code

06657

Assigment Date

03/15/1987 (39 years ago)

3a thread class, right-hand thread direction, 0.425 inches nominal thread length, flat countersunk undercut head style, 0.847 inches minimum and 0.877 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: 0.425 inches nominal
Fastener Length: 0.847 inches minimum and 0.877 inches maximum
Head Style: flat countersunk undercut
Head Diameter: 0.060 inches nominal
Head Height: 0.390 inches minimum and 0.395 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 160000 pounds per square inch
Countersink Angle: 90.0 degrees minimum and 100.0 degrees maximum
Screw Material: iron alloy 660
Screw Surface Treatment: passivate
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
A1C39C4A7	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-251-2339?

The FSCG of the NSN 5305-01-251-2339 is 5305

Does the NSN 5305-01-251-2339 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-251-2339 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 5305-01-251-2339 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-251-2339 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 5305-01-251-2339 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Sun, Mar 15, 1987