MS51960-139

View detailed technical data, stock status, and sourcing information for: MS51960-139
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-092-2841

Item Name Code

06657

Assigment Date

03/22/1980 (46 years ago)

2a thread class, 1.394 inches minimum and 1.500 inches maximum thread length, flat countersunk head style, 1.494 inches minimum and 1.500 inches maximum fastener length, 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: 1.394 inches minimum and 1.500 inches maximum
Fastener Length: 1.494 inches minimum and 1.500 inches maximum
Head Style: flat countersunk
Head Diameter: 0.775 inches minimum and 0.875 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.500 inches
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 80000 pounds per square inch
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel comp 301 or steel comp 302 or steel comp 303 or steel comp 302b or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 3 type and 2c style

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
MS51960-139	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-092-2841?

The FSCG of the NSN 5305-01-092-2841 is 5305

Does the NSN 5305-01-092-2841 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-092-2841 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 5305-01-092-2841 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-092-2841 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 5305-01-092-2841 was assigned to the Federal Catalog?

It was assigned 46 years ago, on Sat, Mar 22, 1980