5305-00-266-6399

Find complete technical information, availability, and procurement data for: 5305-00-266-6399
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-266-6399

Item Name Code

18257

Assigment Date

01/01/1963 (63 years ago)

5.000 inches nominal fastener length, right-hand thread direction, hexagon head style, 2a thread class, 1.375 inches minimum thread length

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: 1.375 inches minimum
Fastener Length: 5.000 inches nominal
Head Style: hexagon
Head Height: 0.348 inches minimum and 0.371 inches maximum
Width Between Flats: 0.798 inches minimum and 0.812 inches maximum
Nominal Thread Diameter: 0.562 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 74000 pounds per square inch
Hardness Rating: 80.0 rockwell b minimum and 100.0 rockwell b maximum overall
Surface Finish: 125.0 microinches bearing surface of head
Surface Finish: 125.0 microinches grip
Surface Finish: 63.0 microinches threads
Material: steel overall
Material Document And Classification: sae gr 2 assn std single material response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 2 type and 10p style and 2 grade

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-261-2732	No Name Available	01/01/1961

FAQs

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

What is the FSCG of the NSN 5305-00-266-6399?

The FSCG of the NSN 5305-00-266-6399 is 5305

Does the NSN 5305-00-266-6399 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-266-6399 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 5305-00-266-6399 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-266-6399 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 5305-00-266-6399 was assigned to the Federal Catalog?

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