NAS628-70

View detailed technical data, stock status, and sourcing information for: NAS628-70
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5306 Bolts

National Stock Number

5306-01-377-3661

Item Name Code

15903

Assigment Date

07/15/1993 (33 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes:bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

double hexagon w/hole head style, right-hand thread direction, 5.101 inches minimum and 5.131 inches maximum fastener length, 0.741 inches nominal thread length, 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: 0.741 inches nominal
Fastener Length: 5.101 inches minimum and 5.131 inches maximum
Head Style: double hexagon w/hole
Head Height: 0.494 inches minimum and 0.514 inches maximum
Width Between Flats: 0.556 inches minimum and 0.565 inches maximum
Extended Washer Diameter: 0.818 inches minimum and 0.828 inches maximum
Extended Washer Thickness: 0.113 inches minimum and 0.133 inches maximum
Grip Diameter: 0.4985 inches minimum and 0.4995 inches maximum
Nominal Thread Diameter: 0.500 inches
Grip Length: 4.365 inches minimum and 4.385 inches maximum
Thread Quantity Per Inch: 20
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 43.0 rockwell c maximum overall
Material: steel comp 4340 or steel comp 8740 or steel comp 6150 or steel comp 8735 overall
Surface Treatment: cadmium overall
Surface Treatment Document And Classification: nas 672 assn std single treatment response overall
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
NAS628-70	Shear Bolt

FAQs

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

What is the FSCG of the NSN 5306-01-377-3661?

The FSCG of the NSN 5306-01-377-3661 is 5306

Does the NSN 5306-01-377-3661 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5306-01-377-3661 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 5306-01-377-3661 contain precious materials?

Item does not contain precious metal.

Does NSN 5306-01-377-3661 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 5306-01-377-3661 was assigned to the Federal Catalog?

It was assigned 33 years ago, on Thu, Jul 15, 1993