NAS6603-6620

View detailed technical data, stock status, and sourcing information for: NAS6603-6620
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-00-949-6114

Item Name Code

15903

Assigment Date

04/18/1966 (60 years ago)

3a thread class, right-hand thread direction, 0.553 inches minimum and 0.603 inches maximum thread length, 3.750 inches minimum and 3.780 inches maximum fastener length, dished hexagon 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: 0.553 inches minimum and 0.603 inches maximum
Fastener Length: 3.750 inches minimum and 3.780 inches maximum
Head Style: dished hexagon
Head Height: 0.188 inches minimum and 0.203 inches maximum
Width Between Flats: 0.553 inches minimum and 0.564 inches maximum
Grip Diameter: 0.3735 inches minimum and 0.3745 inches maximum
Shank Unthreaded Hole Diameter: 0.706 inches minimum and 0.116 inches maximum first hole
Nominal Thread Diameter: 0.375 inches
Grip Length: 3.177 inches minimum and 3.197 inches maximum
Thread Quantity Per Inch: 24
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 40.0 rockwell c maximum overall
Distance From Head Largest Bearing Surface To Shank Hole Center: 3.568 inches nominal first hole
Material: steel comp e4340 or steel comp 4340 or steel comp 8740 or steel comp 8735 or steel comp 6150 or steel comp 4140 overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty2 cl2 fed spec single treatment 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
NAS1306-51D	Shear Bolt
NAS6603-6620	Shear Bolt
NAS6606D51	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-00-949-6114?

The FSCG of the NSN 5306-00-949-6114 is 5306

Does the NSN 5306-00-949-6114 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-00-949-6114 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 5306-00-949-6114 contain precious materials?

Precious metal content is unknown

Does NSN 5306-00-949-6114 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 5306-00-949-6114 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Mon, Apr 18, 1966