5305-00-237-9579

Find complete technical information, availability, and procurement data for: 5305-00-237-9579
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-237-9579

Item Name Code

06657

Assigment Date

05/28/1973 (53 years ago)

right-hand thread direction, flat chamfer head style, 0.310 inches minimum and 0.320 inches maximum fastener length, 2a thread class, 0.280 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: 0.280 inches minimum
Fastener Length: 0.310 inches minimum and 0.320 inches maximum
Head Style: flat chamfer
Head Diameter: 0.423 inches minimum and 0.425 inches maximum
Head Height: 0.180 inches minimum and 0.190 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 150000 pounds per square inch
Criticality Code Justification: feat
Screw Material: steel comp 4130 or steel comp 8630
Screw Material Document And Classification: mil-s-6058 mil spec 1st material response or mil-s-6050 mil spec 2nd material response
Screw Surface Treatment: cadmium
Screw Surface Treatment Document And Classification: f1.20 fscm 81205 mfr ref single treatment response
Special Features: requires heat treat and dimensions to be concentric within .005
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
60-6656	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-237-9579?

The FSCG of the NSN 5305-00-237-9579 is 5305

Does the NSN 5305-00-237-9579 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-237-9579 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 5305-00-237-9579 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-237-9579 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 5305-00-237-9579 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Mon, May 28, 1973