42668A

View detailed technical data, stock status, and sourcing information for: 42668A
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5340 Commercial Hardware

National Stock Number

5340-01-054-6394

Item Name Code

24328

Assigment Date

01/23/1978 (48 years ago)

An item of various shapes and cross-sections, that may be flanged and that is designed to fit over a valve disk, allowing proper position of disk-to-valve seat within a valve body.

0.5000 inches minimum and 0.5020 inches maximum first step diameter, 0.3700 inches minimum and 0.3800 inches maximum end diameter, 0.2195 inches minimum and 0.2205 inches maximum bore diameter, solid design type, 0.1550 inches minimum and 0.1580 inches maximum overall height

Product Characteristics

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

Overall Height: 0.1550 inches minimum and 0.1580 inches maximum
First Step Diameter: 0.5000 inches minimum and 0.5020 inches maximum
Bore Diameter: 0.2195 inches minimum and 0.2205 inches maximum
Design Type: solid
End Diameter: 0.3700 inches minimum and 0.3800 inches maximum
Distance From End To First Step: 0.0800 inches minimum and 0.0880 inches maximum
Special Features: slot in base 0.0150 in. min,0.0250 in. max deep,0.0600 in. min,0.0700 in. max w
Material: steel comp 630
Material Document And Classification: ams 5643 assn std single material response
Surface Treatment: passivate
Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Style Designator: seat

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
42668A	Helical Compression Spring Seat
585240-1	Helical Compression Spring Seat

FAQs

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

What is the FSCG of the NSN 5340-01-054-6394?

The FSCG of the NSN 5340-01-054-6394 is 5340

Does the NSN 5340-01-054-6394 have a Schedule B code assigned?

Yes, the Schedule B code is 9401100000

Does NSN 5340-01-054-6394 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 5340-01-054-6394 contain precious materials?

Item does not contain precious metal.

Does NSN 5340-01-054-6394 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 5340-01-054-6394 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Mon, Jan 23, 1978