5305-00-837-4208

Find complete technical information, availability, and procurement data for: 5305-00-837-4208
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-837-4208

Item Name Code

06657

Assigment Date

01/01/1962 (64 years ago)

2.375 inches minimum and 2.422 inches maximum fastener length, 3a thread class, 0.697 inches minimum and 0.875 inches maximum thread length, flat countersunk 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: 3a
Thread Direction: right-hand
Thread Length: 0.697 inches minimum and 0.875 inches maximum
Fastener Length: 2.375 inches minimum and 2.422 inches maximum
Head Style: flat countersunk
Head Diameter: 0.919 inches minimum and 1.017 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 125000 pounds per square inch
Hardness Rating: 26.0 rockwell c minimum and 32.0 rockwell c maximum
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel comp 4130 or steel comp 8630 or steel comp 8735 or steel comp 8740
Screw Material Document And Classification: mil-s-6758 mil spec 1st material response or mil-s-6050 mil spec 2nd material response or mil-s-6098 mil spec 3rd material response or mil-s-6049 mil spec 4th material response
Screw Surface Treatment: cadmium and chromate
Screw Surface Treatment Document And Classification: qq-p-416 ty 2 cl 3 fed spec single treatment response
Thread Series Designator: unf
Departure From Cited Designator: as modified by internal drive style and location

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
AN509-816R37	Machine Screw
MS24694-S301	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-837-4208?

The FSCG of the NSN 5305-00-837-4208 is 5305

Does the NSN 5305-00-837-4208 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-837-4208 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 5305-00-837-4208 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-837-4208 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 5305-00-837-4208 was assigned to the Federal Catalog?

It was assigned 64 years ago, on Mon, Jan 1, 1962