5305-01-256-5168

Find complete technical information, availability, and procurement data for: 5305-01-256-5168
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-256-5168

Item Name Code

06657

Assigment Date

06/05/1987 (39 years ago)

1.420 inches minimum and 1.531 inches maximum thread length, 3a thread class, right-hand thread direction, 1.484 inches minimum and 1.531 inches maximum fastener length, hexagon head style

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: 1.420 inches minimum and 1.531 inches maximum
Fastener Length: 1.484 inches minimum and 1.531 inches maximum
Head Style: hexagon
Head Height: 0.188 inches minimum and 0.203 inches maximum
Width Between Flats: 0.492 inches minimum and 0.502 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Screw Material: steel comp e4340 or steel comp 8740
Screw Material Document And Classification: mil-s-5000 mil spec 1st material response or mil-s-6049 mil spec 2nd material response or ams6322 assn std 2nd material response
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416 ty 2 cl 2 fed spec single treatment response
Thread Series Designator: unjf
Specification/Standard Data: 80205-nas1801 professional/industrial association standard

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
NAS1801-6-24	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-256-5168?

The FSCG of the NSN 5305-01-256-5168 is 5305

Does the NSN 5305-01-256-5168 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-256-5168 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 5305-01-256-5168 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-256-5168 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 5305-01-256-5168 was assigned to the Federal Catalog?

It was assigned 39 years ago, on Fri, Jun 5, 1987