426648

View detailed technical data, stock status, and sourcing information for: 426648
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-141-0421

Item Name Code

41756

Assigment Date

09/15/1971 (54 years ago)

A hardened externally threaded fastener whose thread extends to the bearing surface of the head. The thread may be fluted or otherwise designed to cut or form its own mating thread. Excludes:screw, assembled washer.

0.172 inches minimum and 0.190 inches maximum head height, 1.328 inches minimum and 1.422 inches maximum fastener length, 0.367 inches minimum and 0.375 inches maximum width between flats, slot internal drive style, 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.

Fastener Length: 1.328 inches minimum and 1.422 inches maximum
Head Style: hexagon
Head Height: 0.172 inches minimum and 0.190 inches maximum
Width Between Flats: 0.367 inches minimum and 0.375 inches maximum
Internal Drive Style: slot
Features Provided: casehardened
Nonmachine Thread Style: gimlet point (type a, ab or ba)
Nonmachine Nominal Thread Diameter: 0.242 inches
Material: steel overall
Surface Treatment: cadmium overall

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
426648	Tapping Screw
9418247	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-00-141-0421?

The FSCG of the NSN 5305-00-141-0421 is 5305

Does the NSN 5305-00-141-0421 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-00-141-0421 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 5305-00-141-0421 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-141-0421 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 5305-00-141-0421 was assigned to the Federal Catalog?

It was assigned 54 years ago, on Wed, Sep 15, 1971