748903

View detailed technical data, stock status, and sourcing information for: 748903
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-352-6423

Item Name Code

24328

Assigment Date

01/29/1992 (34 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.

0.3580 inches nominal overall height, 2.6210 inches minimum and 2.6230 inches maximum first step diameter, 2.1670 inches minimum and 2.1870 inches maximum bore diameter, 0.1930 inches nominal first step length, 3.4900 inches minimum and 3.5100 inches maximum 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.

Overall Height: 0.3580 inches nominal
First Step Diameter: 2.6210 inches minimum and 2.6230 inches maximum
First Step Length: 0.1930 inches nominal
Second Step Diameter: 3.4900 inches minimum and 3.5100 inches maximum
Bore Diameter: 2.1670 inches minimum and 2.1870 inches maximum
Material Hardness Rating: 35.0 rockwell c minimum and 39.0 rockwell c maximum
Design Type: solid
End Diameter: 2.3390 inches minimum and 2.3590 inches maximum
Distance From End To First Step: 0.0700 inches nominal
Material: steel comp xm-12
Material Document And Classification: ams 5659 assn std single material response
Surface Treatment: passivate
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response

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
748903	Helical Compression Spring Seat

FAQs

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

What is the FSCG of the NSN 5340-01-352-6423?

The FSCG of the NSN 5340-01-352-6423 is 5340

Does NSN 5340-01-352-6423 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 5340-01-352-6423 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-352-6423 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 5340-01-352-6423 was assigned to the Federal Catalog?

It was assigned 34 years ago, on Wed, Jan 29, 1992