5305-00-510-6589

Find complete technical information, availability, and procurement data for: 5305-00-510-6589
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-510-6589

Item Name Code

18257

Assigment Date

07/26/1974 (52 years ago)

0.635 inches minimum and 0.655 inches maximum thread length, 2.395 inches minimum fastener length, right-hand thread direction, double hexagon w/hole head style, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 0.635 inches minimum and 0.655 inches maximum
Fastener Length: 2.395 inches minimum
Head Style: double hexagon w/hole
Head Height: 0.388 inches nominal
Width Between Flats: 0.430 inches minimum and 0.459 inches maximum
Extended Washer Diameter: 0.639 inches minimum and 0.649 inches maximum
Extended Washer Thickness: 0.091 inches nominal
Nominal Thread Diameter: 0.375 inches
Features Provided: finished head
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Material: steel comp e4340 or steel comp 4340 or steel comp 4140 or steel comp 8740 or steel comp 6150 overall
Material Document And Classification: mil-s-5000 mil spec single material response or mil-s-5000 mil spec 1st material response or mil-s-5626 mil spec 2nd material response or mil-s-6049 mil spec 3rd material response or mil-s-8503 mil spec 4th material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,type 2,class 3 fed spec single treatment response overall
Thread Series Designator: unjf

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
NPS21250-06028	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-510-6589?

The FSCG of the NSN 5305-00-510-6589 is 5305

Does the NSN 5305-00-510-6589 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-510-6589 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 5305-00-510-6589 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-510-6589 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 5305-00-510-6589 was assigned to the Federal Catalog?

It was assigned 52 years ago, on Fri, Jul 26, 1974