639156-267

View detailed technical data, stock status, and sourcing information for: 639156-267
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-834-8267

Item Name Code

06657

Assigment Date

12/02/1966 (59 years ago)

flat countersunk head style, 0.375 inches nominal fastener length, right-hand thread direction, 2a thread class, 0.325 inches minimum and 0.375 inches maximum 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: 0.325 inches minimum and 0.375 inches maximum
Fastener Length: 0.375 inches nominal
Head Style: flat countersunk
Head Diameter: 0.200 inches minimum and 0.225 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 55000 pounds per square inch
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: copper alloy
Screw Material Document And Classification: qq-b-613 fed spec single material response or qq-b-626 fed spec single material response or qq-w-321 fed spec single material response
Screw Surface Treatment: cadmium
Thread Series Designator: unc
Nondefinitive Spec/Std Data: 1 type and 3s 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
639156-267	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-834-8267?

The FSCG of the NSN 5305-00-834-8267 is 5305

Does the NSN 5305-00-834-8267 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-00-834-8267 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 5305-00-834-8267 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-834-8267 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 5305-00-834-8267 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Dec 2, 1966