S-3601

View detailed technical data, stock status, and sourcing information for: S-3601
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-410-7926

Item Name Code

06657

Assigment Date

03/12/1995 (31 years ago)

A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore, designed to accommodate the end of the spring. It is used to position the spring but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer,helical compression spring. Excludes:washer (as modified), seat,ball socket, and holder,spring. See also rotor,engine poppet valve.

0.748 inches nominal thread length, 2a thread class, right-hand thread direction, 1.000 inches nominal fastener length, flat countersunk undercut head style

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: 0.748 inches nominal
Fastener Length: 1.000 inches nominal
Head Style: flat countersunk undercut
Head Diameter: 0.452 inches minimum and 0.507 inches maximum
Head Height: 0.092 inches minimum and 0.107 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 20
Countersink Angle: 80.0 degrees minimum and 82.0 degrees maximum
Screw Material: steel
Screw Surface Treatment: zinc
Thread Series Designator: unc

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
S-3601	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-410-7926?

The FSCG of the NSN 5305-01-410-7926 is 5305

Does the NSN 5305-01-410-7926 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-410-7926 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 5305-01-410-7926 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-410-7926 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 5305-01-410-7926 was assigned to the Federal Catalog?

It was assigned 31 years ago, on Sun, Mar 12, 1995