5305-00-259-0554

Find complete technical information, availability, and procurement data for: 5305-00-259-0554
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-259-0554

Item Name Code

18257

Assigment Date

06/27/1973 (53 years ago)

0.773 inches minimum and 0.875 inches maximum thread length, 2a thread class, 0.844 inches minimum and 0.875 inches maximum fastener length, hexagon head style, right-hand thread direction

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: 0.773 inches minimum and 0.875 inches maximum
Fastener Length: 0.844 inches minimum and 0.875 inches maximum
Head Style: hexagon
Head Height: 0.150 inches minimum and 0.163 inches maximum
Width Between Flats: 0.428 inches minimum and 0.437 inches maximum
Shank Unthreaded Hole Diameter: 0.074 inches minimum and 0.082 inches maximum first hole
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 120000 pounds per square inch
Hardness Rating: 25.0 rockwell c minimum and 34.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 0.725 inches minimum and 0.776 inches maximum first hole
Surface Finish: 63.0 microinches threads
Material: steel overall
Material Document And Classification: sae gr 5 assn std single material response overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty 2,cl 3 fed spec single treatment response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 2 type and 10p style and 5 grade

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
MS51106-307	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-259-0554?

The FSCG of the NSN 5305-00-259-0554 is 5305

Does the NSN 5305-00-259-0554 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-259-0554 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 5305-00-259-0554 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-259-0554 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 5305-00-259-0554 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, Jun 27, 1973