5305-00-363-3990

Find complete technical information, availability, and procurement data for: 5305-00-363-3990
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-363-3990

Item Name Code

06660

Assigment Date

02/22/1974 (52 years ago)

0.188 inches minimum and 0.250 inches maximum thread length, hexagon head style, 0.250 inches nominal fastener length, right-hand thread direction, 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: 0.188 inches minimum and 0.250 inches maximum
Fastener Length: 0.250 inches nominal
Head Style: hexagon
Head Height: 0.172 inches minimum and 0.190 inches maximum
Width Between Flats: 0.367 inches minimum and 0.375 inches maximum
Washer Quantity: 1
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 74000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum and 100.0 rockwell b maximum overall
Minimum Yield Strength: 57000 pounds per square inch
Primary Washer Outside Diameter: 0.395 inches minimum and 0.410 inches maximum
Primary Washer Style: flat external teeth
Primary Washer Material Thickness: 0.020 inches minimum and 0.025 inches maximum
Material: steel overall
Surface Treatment: cadmium or zinc overall
Surface Treatment Document And Classification: ams 2400 assn std 1st treatment response or ams 2402 assn std 2nd treatment response overall
Thread Series Designator: unc

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
13218E0504-51	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-00-363-3990?

The FSCG of the NSN 5305-00-363-3990 is 5305

Does the NSN 5305-00-363-3990 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-363-3990 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 5305-00-363-3990 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-363-3990 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 5305-00-363-3990 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Feb 22, 1974