5305-00-660-3179

Find complete technical information, availability, and procurement data for: 5305-00-660-3179
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-660-3179

Item Name Code

06657

Assigment Date

01/01/1963 (63 years ago)

0.425 inches minimum thread length, 0.785 inches minimum and 0.815 inches maximum fastener length, flat countersunk head style, right-hand thread direction, 3a thread class

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 minimum
Fastener Length: 0.785 inches minimum and 0.815 inches maximum
Head Style: flat countersunk
Head Diameter: 0.510 inches nominal
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel
Screw Surface Treatment: cadmium or nickel
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
BACB30LU4-6	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-660-3179?

The FSCG of the NSN 5305-00-660-3179 is 5305

Does the NSN 5305-00-660-3179 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-660-3179 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 5305-00-660-3179 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-660-3179 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 5305-00-660-3179 was assigned to the Federal Catalog?

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