5305-00-637-5559

Find complete technical information, availability, and procurement data for: 5305-00-637-5559
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-637-5559

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

2a thread class, 0.438 inches nominal fastener length, flat countersunk head style, right-hand thread direction, 0.376 inches minimum and 0.438 inches maximum thread 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: 2a
Thread Direction: right-hand
Thread Length: 0.376 inches minimum and 0.438 inches maximum
Fastener Length: 0.438 inches nominal
Head Style: flat countersunk
Head Diameter: 0.249 inches minimum and 0.279 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.138 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 62000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: aluminum alloy 2024
Screw Material Document And Classification: qq-a-200/3 fed spec single material response or qq-a-225/6 fed spec single material response
Screw Surface Treatment: anodize
Screw Surface Treatment Document And Classification: mil-a-8625 mil spec single treatment response
Thread Series Designator: unc

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
AN507DD632R7	Machine Screw
MS24693-A27	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-637-5559?

The FSCG of the NSN 5305-00-637-5559 is 5305

Does the NSN 5305-00-637-5559 have a Schedule B code assigned?

Yes, the Schedule B code is 7616106000

Does NSN 5305-00-637-5559 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 5305-00-637-5559 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-637-5559 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 5305-00-637-5559 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963