SC-B-645682-C4-16

View detailed technical data, stock status, and sourcing information for: SC-B-645682-C4-16
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-153-7911

Item Name Code

06673

Assigment Date

10/20/1971 (54 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, splined or smoothed, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

thumb no. 4 head style, 0.750 inches nominal width between flats, 0.500 inches nominal head height, 2a thread class, 1.188 inches minimum thread length

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 Length: 1.188 inches minimum
Head Style: thumb no. 4
Head Height: 0.500 inches nominal
Width Between Flats: 0.750 inches nominal
Nominal Thread Diameter: 0.250 inches
Thread Quantity Per Inch: 28
Material: steel comp 302 overall
Material Document And Classification: mil-s-7720 mil spec 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
SC-B-645682	Thumbscrew
SC-B-645682-C4-16	Thumbscrew

FAQs

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

What is the FSCG of the NSN 5305-00-153-7911?

The FSCG of the NSN 5305-00-153-7911 is 5305

Does the NSN 5305-00-153-7911 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-153-7911 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 5305-00-153-7911 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-153-7911 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 5305-00-153-7911 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Oct 20, 1971