424504

View detailed technical data, stock status, and sourcing information for: 424504
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-590-7883

Item Name Code

06660

Assigment Date

01/01/1963 (63 years ago)

0.375 inches nominal fastener length, 0.375 inches maximum thread length, right-hand thread direction, round head style, 2a 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: 2a
Thread Direction: right-hand
Thread Length: 0.375 inches maximum
Fastener Length: 0.375 inches nominal
Head Style: round
Head Diameter: 0.334 inches minimum and 0.359 inches maximum
Head Height: 0.123 inches minimum and 0.137 inches maximum
Washer Quantity: 1
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Hardness Rating: 40.0 rockwell c minimum and 50.0 rockwell c maximum primary washer
Primary Washer Outside Diameter: 0.372 inches minimum and 0.383 inches maximum
Primary Washer Style: flat internal teeth
Primary Washer Material Thickness: 0.022 inches nominal
Material: steel comp 1050 or steel comp 1060 primary washer
Material: steel comp 1010 or steel fastener
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: qq-p-416,ty 1,cl 3 fed spec 1st treatment response or qq-z-325,ty 1,cl 3 fed spec 2nd treatment response overall
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-042-4535	No Name Available	08/01/1979

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
188316	Assembled Washer Screw
424504	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-590-7883?

The FSCG of the NSN 5305-00-590-7883 is 5305

Does the NSN 5305-00-590-7883 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-590-7883 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 5305-00-590-7883 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-590-7883 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 5305-00-590-7883 was assigned to the Federal Catalog?

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