5305-00-550-3491

Find complete technical information, availability, and procurement data for: 5305-00-550-3491
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-550-3491

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

0.625 inches nominal fastener length, right-hand thread direction, 0.625 inches maximum thread length, 3a thread class, 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: 0.625 inches maximum
Fastener Length: 0.625 inches nominal
Head Style: flat countersunk
Head Diameter: 0.233 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: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel comp 8630
Screw Material Document And Classification: mil-s-6050 mil spec single material response or an-s-9 mil std single material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec single treatment response
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-475-8397	No Name Available	01/01/1961

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
NAS514P632-10	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-550-3491?

The FSCG of the NSN 5305-00-550-3491 is 5305

Does the NSN 5305-00-550-3491 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-550-3491 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 5305-00-550-3491 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-550-3491 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 5305-00-550-3491 was assigned to the Federal Catalog?

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