5305-00-207-7178

Find complete technical information, availability, and procurement data for: 5305-00-207-7178
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-207-7178

Item Name Code

16282

Assigment Date

01/01/1963 (63 years ago)

flat countersunk head style, 3a thread class, 0.416 inches minimum thread length, right-hand thread direction, 0.500 inches nominal 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: 3a
Thread Direction: right-hand
Thread Length: 0.416 inches minimum
Fastener Length: 0.500 inches nominal
Head Style: flat countersunk
Head Diameter: 0.480 inches minimum and 0.531 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.156 inches nominal
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 43.0 rockwell c maximum overall
Minimum Yield Strength: 130000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 84.0 degrees maximum
Material: steel overall
Material Document And Classification: 66 fed 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 all treatment responses overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-619-1345	No Name Available	09/01/2023

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
9428M64P23	Socket Head Cap Screw
MS24667-28	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-207-7178?

The FSCG of the NSN 5305-00-207-7178 is 5305

Does the NSN 5305-00-207-7178 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-207-7178 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 5305-00-207-7178 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-207-7178 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 5305-00-207-7178 was assigned to the Federal Catalog?

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