4820-00-431-8321

Find complete technical information, availability, and procurement data for: 4820-00-431-8321
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-431-8321

Item Name Code

05486

Assigment Date

05/05/1971 (55 years ago)

0.750 inches all ends nominal pipe size accommodated, disk flow control device, 775.0 fahrenheit single response maximum operating temp, bolted bonnet attachment method, outside screw-yoke bonnet type

Product Characteristics

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

Nominal Pipe Size Accommodated: 0.750 inches all ends
Flow Control Device: disk
Bonnet Type: outside screw-yoke
Bonnet Attachment Method: bolted
Maximum Operating Temp: 775.0 fahrenheit single response
Connection Style: socket (pipe) all ends
Valve Operation Method: manual
Connection Type: unthreaded internal pipe all ends
Mounting Position: horizontal
Features Provided: bonnet packing
Maximum Operating Pressure: 1500.0 pounds per square inch single response
Special Features: valve size 0.750 in.
Material: steel body
Material: steel corrosion resisting stem
Material: steel flow control device
Material: steel seat
Material Document And Classification: astm a105, grade 2 assn std single material response body
Material Document And Classification: mil-r-17131,mil-rcocr-a mil spec single material response flow control device
Material Document And Classification: mil-r-17131,mil-rcocr-a mil spec single material response seat
Media For Which Designed: steam single response
Style Designator: straight thru

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
4820-01-006-8585	No Name Available	05/01/1976

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
80000-01 PART 81561-01 3/4IN	Stop-Check Valve
81561-01 3/4IN	Stop-Check Valve
B522-1-B1CID882039176	Stop-Check Valve
C522-0-B12	Stop-Check Valve
C522-1-B PART C522-1-B2	Stop-Check Valve
C522-1-BREVA/C522-1-B2/882039336	Stop-Check Valve

FAQs

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

What is the FSCG of the NSN 4820-00-431-8321?

The FSCG of the NSN 4820-00-431-8321 is 4820

Does the NSN 4820-00-431-8321 have a Schedule B code assigned?

Yes, the Schedule B code is 8481302090

Does NSN 4820-00-431-8321 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 4820-00-431-8321 contain precious materials?

Item does not contain precious metal.

Does NSN 4820-00-431-8321 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 4820-00-431-8321 was assigned to the Federal Catalog?

It was assigned 55 years ago, on Wed, May 5, 1971