5305-00-173-8158

Find complete technical information, availability, and procurement data for: 5305-00-173-8158
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-173-8158

Item Name Code

18257

Assigment Date

02/16/1973 (53 years ago)

hexagon head style, 1.000 inches maximum thread length, right-hand thread direction, 2a thread class, 0.969 inches minimum and 1.000 inches maximum fastener 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: 1.000 inches maximum
Fastener Length: 0.969 inches minimum and 1.000 inches maximum
Head Style: hexagon
Head Height: 0.226 inches minimum and 0.243 inches maximum
Width Between Flats: 0.551 inches minimum and 0.562 inches maximum
Shank Unthreaded Hole Diameter: 0.107 inches nominal first hole
Nominal Thread Diameter: 0.375 inches
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 0.803 inches minimum and 0.854 inches maximum first hole
Surface Finish: 63.0 microinches threads
Material: steel overall
Material Document And Classification: sae gr 8 assn std single material response overall
Surface Treatment: phosphate zinc overall
Surface Treatment Document And Classification: mil-p-16232 mil spec all treatment responses overall
Thread Series Designator: unf

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
MS51108-60	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-173-8158?

The FSCG of the NSN 5305-00-173-8158 is 5305

Does the NSN 5305-00-173-8158 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-173-8158 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 5305-00-173-8158 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-173-8158 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 5305-00-173-8158 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Fri, Feb 16, 1973