7S39-3A11

View detailed technical data, stock status, and sourcing information for: 7S39-3A11
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-826-3510

Item Name Code

06657

Assigment Date

01/01/1962 (64 years ago)

A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.

3a thread class, right-hand thread direction, 1.025 inches nominal fastener length, flat countersunk head style, 0.338 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: 3a
Thread Direction: right-hand
Thread Length: 0.338 inches minimum
Fastener Length: 1.025 inches nominal
Head Style: flat countersunk
Head Diameter: 0.297 inches minimum and 0.302 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle: 100.0 degrees nominal
Screw Material: steel comp 4130
Screw Material Document And Classification: mil-s-6758 mil spec single material response
Screw Surface Treatment: cadmium
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
7S39-3A11	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-826-3510?

The FSCG of the NSN 5305-00-826-3510 is 5305

Does the NSN 5305-00-826-3510 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-826-3510 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 5305-00-826-3510 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-826-3510 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 5305-00-826-3510 was assigned to the Federal Catalog?

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