5305-01-386-3970

Find complete technical information, availability, and procurement data for: 5305-01-386-3970
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-386-3970

Item Name Code

06657

Assigment Date

02/04/1994 (32 years ago)

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery.

hexagon head style, 0.490 inches minimum and 0.620 inches maximum thread length, right-hand thread direction, 0.590 inches minimum and 0.620 inches maximum fastener length, 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: 0.490 inches minimum and 0.620 inches maximum
Fastener Length: 0.590 inches minimum and 0.620 inches maximum
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
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 60000 pounds per square inch
Screw Material: steel
Screw Material Document And Classification: fed std 66 fed spec single material response or qq-s-637 fed spec single material response or astm a108 fed spec single material response
Screw Surface Treatment: chromate
Color: bronze or olive drab
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
12387271-95	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-386-3970?

The FSCG of the NSN 5305-01-386-3970 is 5305

Does the NSN 5305-01-386-3970 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-386-3970 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 5305-01-386-3970 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-386-3970 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 5305-01-386-3970 was assigned to the Federal Catalog?

It was assigned 32 years ago, on Fri, Feb 4, 1994