5340-00-952-1040

Find complete technical information, availability, and procurement data for: 5340-00-952-1040
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-952-1040

Item Name Code

20259

Assigment Date

04/29/1966 (60 years ago)

A shouldered hollow screw and threaded sleeve assembly, designed to be fastened in place by turning the screw, causing one end of the sleeve to flare over the shoulder and against the material through which it has been inserted. Also, a countersunk head hollow screw and flared sleeve-nut assembly, designed to mate with a dimpled hole in the material to which it is fastened. The hollow screws may also have internal threads for attaching screws. See also shield, expansion.

flat countersunk head style, closed sleeve features provided, 0.420 inches nominal head diameter, screw mounting method, socket internal drive style

Product Characteristics

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

Head Style: flat countersunk
Head Diameter: 0.420 inches nominal
Internal Drive Style: socket
Mounting Method: screw
Features Provided: closed sleeve
Hole Size For Which Designed: 0.3120 inches minimum and 0.3731 inches maximum
Material Thickness Range For Which Designed: +0.302 to 0.322 inches
Screw Minimum Length For Which Designed: 0.673 inches
Thread Quantity Per Inch: 32
Nominal Thread Size: 0.190 inches
Countersink Angle: 100.0 degrees nominal
Style Designator: counterbored sleeve
Thread Series Designator: unf

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5306-00-830-2136	No Name Available	03/18/1970

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
1920-5-5	Flare Lock Fastener
C392-5-5	Flare Lock Fastener
PAF20-5-5	Flare Lock Fastener

FAQs

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

What is the FSCG of the NSN 5340-00-952-1040?

The FSCG of the NSN 5340-00-952-1040 is 5340

Does NSN 5340-00-952-1040 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 5340-00-952-1040 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-952-1040 contain hazardous materials?

Indicates there is no information in the hmirs. The nsn is in a fsc in table ii of fed std 313 and a msds may be required by the user. The requirement for a msds is dependent on a hazard determination of the supplier or the intended end use of item.

When the NSN 5340-00-952-1040 was assigned to the Federal Catalog?

It was assigned 60 years ago, on Fri, Apr 29, 1966