51-143PC580

View detailed technical data, stock status, and sourcing information for: 51-143PC580
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-4105

Item Name Code

05488

Assigment Date

01/01/1963 (63 years ago)

exposed spring bonnet type, union bonnet attachment method, disk flow control device, 1.250 inches 1st end nominal pipe size accommodated, right-hand all ends thread direction

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: 1.250 inches 1st end
Thread Direction: right-hand all ends
Flow Control Device: disk
Bonnet Type: exposed spring
Bonnet Attachment Method: union
Disk Loading Method: spring
Maximum Operating Temp: 350.0 fahrenheit 2nd response
Maximum Operating Temp: 425.0 fahrenheit 1st response
Connection Style: plain,optional end(pipe) all ends
Valve Operation Method: automatic or manual
Connection Type: threaded internal pipe all ends
Features Provided: valve stem lock shield
Adjustable Pressure Range: +4.0 to 9.0 pounds per square inch
Maximum Operating Pressure: 200.0 pounds per square inch 1st response
Maximum Operating Pressure: 300.0 pounds per square inch 2nd response
Nominal Thread Size: 1.250 inches all ends
Material: copper alloy body
Material: copper alloy flow control device
Material: copper alloy stem
Material: nickel alloy seat
Media For Which Designed: air 2nd response
Media For Which Designed: steam 1st response
Style Designator: angle
Thread Series Designator: npt all ends

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
460-0275-000	Safety Relief Valve
51-143PC580	Safety Relief Valve
51-160PC580	Safety Relief Valve
51-332PC580	Safety Relief Valve
51-335PC580	Safety Relief Valve
51-391PC580	Safety Relief Valve
51-449PC580	Safety Relief Valve
M36461-1PC46	Safety Relief Valve
M36548-1PC580	Safety Relief Valve
M36558-2ALT1PC580	Safety Relief Valve
M36558-2PC580	Safety Relief Valve
M36737PC580	Safety Relief Valve
M36812PC580	Safety Relief Valve
V009	Safety Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-4105?

The FSCG of the NSN 4820-00-287-4105 is 4820

Does the NSN 4820-00-287-4105 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-4105 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 4820-00-287-4105 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-4105 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 4820-00-287-4105 was assigned to the Federal Catalog?

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