5340-00-342-3459

Find complete technical information, availability, and procurement data for: 5340-00-342-3459
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-00-342-3459

Item Name Code

24328

Assigment Date

01/01/1963 (63 years ago)

A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore, designed to accommodate the end of the spring. It is used to position the spring but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer,helical compression spring. Excludes:washer (as modified), seat,ball socket, and holder,spring. See also rotor,engine poppet valve.

0.5000 inches nominal overall height, 7.125 chamfer angle in deg, 1.4060 inches nominal first step diameter, 0.0570 inches minimum and 0.0670 inches maximum first step length, 1.8130 inches nominal second step diameter

Product Characteristics

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

Chamfer Angle In Deg: 7.125
Overall Height: 0.5000 inches nominal
First Step Diameter: 1.4060 inches nominal
First Step Length: 0.0570 inches minimum and 0.0670 inches maximum
Second Step Diameter: 1.8130 inches nominal
Bore Diameter: 0.6990 inches minimum and 0.7030 inches maximum
Seat Angle In Deg: 30.000
Material Hardness Rating: 51.0 rockwell c nominal
Second End Diameter: 1.6650 inches nominal
Design Type: solid
End Diameter: 0.8590 inches nominal
Bore Taper In Deg: 7.125
Distance From End To First Step: 0.3080 inches minimum and 0.3180 inches maximum
Material: steel comp 8640
Material Document And Classification: aisi 8640 assn std single material response or sae 8640 assn std single material response
Style Designator: seat
Fsc Application Data: engines,reciprocating,gasoline,except aircraft prime moving

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
811E123	Helical Compression Spring Seat
S749I204	Helical Compression Spring Seat

FAQs

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

What is the FSCG of the NSN 5340-00-342-3459?

The FSCG of the NSN 5340-00-342-3459 is 5340

Does NSN 5340-00-342-3459 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 5340-00-342-3459 contain precious materials?

Precious metal content is unknown

Does NSN 5340-00-342-3459 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 5340-00-342-3459 was assigned to the Federal Catalog?

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