NAS1634C11

View detailed technical data, stock status, and sourcing information for: NAS1634C11
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-443-2540

Item Name Code

06657

Assigment Date

04/11/1969 (57 years ago)

right-hand thread direction, 3a thread class, 0.989 inches minimum and 1.019 inches maximum fastener length, 0.291 inches minimum and 0.341 inches maximum thread length, pan 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: 3a
Thread Direction: right-hand
Thread Length: 0.291 inches minimum and 0.341 inches maximum
Fastener Length: 0.989 inches minimum and 1.019 inches maximum
Head Style: pan
Head Diameter: 0.473 inches minimum and 0.492 inches maximum
Head Height: 0.162 inches minimum and 0.175 inches maximum
Internal Drive Style: torque set
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 140000 pounds per square inch
Hardness Rating: 248.0 brinell standard minimum and 341.0 brinell standard maximum
Screw Material: iron alloy 660
Screw Material Document And Classification: ams 5732 assn std single material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unjf

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
NAS1634C11	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-443-2540?

The FSCG of the NSN 5305-00-443-2540 is 5305

Does the NSN 5305-00-443-2540 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-443-2540 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 5305-00-443-2540 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-443-2540 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 5305-00-443-2540 was assigned to the Federal Catalog?

It was assigned 57 years ago, on Fri, Apr 11, 1969