5305-00-721-8571

Find complete technical information, availability, and procurement data for: 5305-00-721-8571
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-721-8571

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

0.156 inches minimum and 0.188 inches maximum fastener length, flat countersunk head style, 2a thread class, 0.152 inches minimum and 0.188 inches maximum thread length, right-hand thread direction

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: 0.152 inches minimum and 0.188 inches maximum
Fastener Length: 0.156 inches minimum and 0.188 inches maximum
Head Style: flat countersunk
Head Diameter: 0.150 inches minimum and 0.172 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.086 inches
Thread Quantity Per Inch: 56
Minimum Tensile Strength: 60000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Part Name Assigned By Controlling Agency: navy special project
Screw Material: steel
Screw Material Document And Classification: qq-s-633 fed spec single material response
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec single treatment response
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 3 type and 3c style
Departure From Cited Designator: as modified by thread size and series/type designator and head dimensions

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
CVC845-2-3	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-721-8571?

The FSCG of the NSN 5305-00-721-8571 is 5305

Does the NSN 5305-00-721-8571 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-721-8571 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 5305-00-721-8571 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-721-8571 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 5305-00-721-8571 was assigned to the Federal Catalog?

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