5305-00-926-5640

Find complete technical information, availability, and procurement data for: 5305-00-926-5640
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-926-5640

Item Name Code

06657

Assigment Date

12/14/1966 (59 years ago)

flat countersunk head style, right-hand thread direction, 2.250 inches nominal fastener length, 2a thread class, 1.750 inches minimum 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: 1.750 inches minimum
Fastener Length: 2.250 inches nominal
Head Style: flat countersunk
Head Diameter: 0.568 inches minimum and 0.635 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 80000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 or steel comp 316
Screw Material Document And Classification: 66 fed std all material responses
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
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
MS51960-106	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-926-5640?

The FSCG of the NSN 5305-00-926-5640 is 5305

Does the NSN 5305-00-926-5640 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-926-5640 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 5305-00-926-5640 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-926-5640 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 5305-00-926-5640 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Wed, Dec 14, 1966