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)

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

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Below is a list of NSNs that have been officially superseded by this NSN: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