401885

View detailed technical data, stock status, and sourcing information for: 401885
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-579-3062

Item Name Code

01852

Assigment Date

01/01/1963 (63 years ago)

0.310 inches minimum and 0.370 inches maximum thread length, flat chamfer head style, 0.750 inches nominal fastener length, 2a thread class, right-hand thread direction

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 Direction: right-hand
Thread Length: 0.310 inches minimum and 0.370 inches maximum
Fastener Length: 0.750 inches nominal
Head Style: flat chamfer
Head Diameter: 0.310 inches nominal
Head Height: 0.060 inches nominal
First Diameter From Head: 0.190 inches nominal
Second Diameter From Head: 0.217 inches nominal
Third Diameter From Head: 0.160 inches nominal
Fourth Diameter From Head: 0.187 inches nominal
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.050 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Second Diameter: 0.255 inches nominal
Distance From Largest Bearing Surface Of Head To End Of Fourth Diameter: 0.380 inches nominal
Internal Drive Style: slot
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Externally Relieved Body Diameter Quantity: 4
Special Features: 16.0 microinches on second dia. and 32.0 microinches on forth dia
Material: steel comp 416 overall
Material Document And Classification: aisi assn std single material response overall
Surface Treatment: passivate 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
401885	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-00-579-3062?

The FSCG of the NSN 5305-00-579-3062 is 5305

Does the NSN 5305-00-579-3062 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-579-3062 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 5305-00-579-3062 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-579-3062 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 5305-00-579-3062 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963