B71-04393-136

View detailed technical data, stock status, and sourcing information for: B71-04393-136
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-355-2693

Item Name Code

41756

Assigment Date

03/13/1992 (34 years ago)

0.469 inches minimum and 0.531 inches maximum fastener length, fillister extended washer head style, 0.365 inches nominal head diameter, 0.425 inches minimum and 0.445 inches maximum extended washer diameter, 0.170 inches nominal head height

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Fastener Length: 0.469 inches minimum and 0.531 inches maximum
Head Style: fillister extended washer
Head Diameter: 0.365 inches nominal
Head Height: 0.170 inches nominal
Extended Washer Diameter: 0.425 inches minimum and 0.445 inches maximum
Extended Washer Thickness: 0.080 inches nominal
Internal Drive Style: cross recess type 1
Features Provided: finished head
Nonmachine Thread Style: gimlet point (type a, ab or ba)
Nonmachine Nominal Thread Diameter: 0.190 inches
Special Features: 24 to 30 serrations equally spaced clockwise engagement of screw on bearing surface of head
Material: steel comp 1021 overall
Surface Treatment: zinc and chromate 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
1594890	Tapping Screw
B71-04393-136	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-01-355-2693?

The FSCG of the NSN 5305-01-355-2693 is 5305

Does the NSN 5305-01-355-2693 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-355-2693 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 5305-01-355-2693 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-355-2693 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 5305-01-355-2693 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Fri, Mar 13, 1992