11640338

View detailed technical data, stock status, and sourcing information for: 11640338
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-252-8656

Item Name Code

18257

Assigment Date

07/25/1969 (56 years ago)

hexagon head style, 1.500 inches minimum thread length, 3.220 inches minimum and 3.280 inches maximum fastener length, right-hand thread direction, 3a thread class

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: 1.500 inches minimum
Fastener Length: 3.220 inches minimum and 3.280 inches maximum
Head Style: hexagon
Head Height: 0.263 inches minimum and 0.268 inches maximum
Width Between Flats: 0.922 inches minimum and 0.938 inches maximum
Shank Unthreaded Hole Diameter: 0.110 inches minimum and 0.170 inches maximum first hole
Nominal Thread Diameter: 0.625 inches
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 150000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 38.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 2.810 inches minimum and 2.870 inches maximum first hole
Special Features: oval point
Material: steel overall
Material Document And Classification: sae gr 8 assn std single material response overall
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
11640338	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-252-8656?

The FSCG of the NSN 5305-00-252-8656 is 5305

Does the NSN 5305-00-252-8656 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-252-8656 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 5305-00-252-8656 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-252-8656 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 5305-00-252-8656 was assigned to the Federal Catalog?

It was assigned 56 years ago, on Fri, Jul 25, 1969