571-4900-1302763PCV21

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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-288-7836

Item Name Code

05488

Assigment Date

01/01/1961 (65 years ago)

right-hand 2nd end thread direction, poppet flow control device, 0.500 inches 2nd end nominal pipe size accommodated, right-hand 1st end thread direction, 0.500 inches 1st end nominal pipe size accommodated

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: 0.500 inches 1st end
Nominal Pipe Size Accommodated: 0.500 inches 2nd end
Thread Direction: right-hand 1st end
Thread Direction: right-hand 2nd end
Flow Control Device: poppet
Bonnet Type: inside spring
Bonnet Attachment Method: threaded
Disk Loading Method: spring
Valve Discharge Flow Rate: 274.0 pounds per hour
Renewable Seat Ring Type: threaded
Maximum Operating Temp: 450.0 fahrenheit single response
Connection Style: plain (pipe) 2nd end
Connection Style: plain,optional end(pipe) 1st end
Valve Operation Method: automatic or manual
Connection Type: threaded external pipe 2nd end
Connection Type: threaded internal pipe 1st end
Features Provided: valve stem lock shield and bonnet packing and pressure tight outlet side
Adjustable Pressure Range: +76.0 to 175.0 pounds per square inch
Maximum Operating Pressure: 250.0 pounds per square inch single response
Nominal Thread Size: 0.500 inches 1st end
Nominal Thread Size: 0.500 inches 2nd end
Material: copper alloy 922 body
Material: nickel alloy flow control device
Material: nickel alloy seat
Material: steel stem
Material Document And Classification: qq-c-390,alloyd4/d/ fed spec single material response body
Media For Which Designed: steam single response
Style Designator: angle
Thread Series Designator: npt 2nd end
Thread Series Designator: npt 1st end
Reference Number Differentiating Characteristics: as differentiated by valve size and relief pressure range

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214-4900-799268PCV1039	Safety Relief Valve
222-4900-232701PCV668	Safety Relief Valve
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2476-06ALT15M0DIFICATI0N4PCV624	Safety Relief Valve
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2476-16ALT27M0DIFICATI0N5PCV838	Safety Relief Valve
2476-16ALT27M0DIFICATI0N5PCV871	Safety Relief Valve
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2476-37ALT11PC1140	Safety Relief Valve
271-4900-957265ALT2PCV876	Safety Relief Valve
271-4900-957265PCV870	Safety Relief Valve
271-4900-958181ALTAPCV668	Safety Relief Valve
271-4900-958181ALTAPCV688	Safety Relief Valve
271-4900-958181PCV1047	Safety Relief Valve
271-4900-958181PCV1062	Safety Relief Valve
271-4900-958181PCV668	Safety Relief Valve
271-4900-958581PCV1039	Safety Relief Valve
271-4900-958581PCV1062	Safety Relief Valve
271-4900-958581PCV688	Safety Relief Valve
3076-08PCV21	Safety Relief Valve
3076-08PCV28	Safety Relief Valve
3076-10PCV26	Safety Relief Valve
3076-12PCV3	Safety Relief Valve
3076-14PCV17	Safety Relief Valve
313-4900-223400PCV624	Safety Relief Valve
313-4900-223400PCV634	Safety Relief Valve
313-4900-233405ALT11PCV1140	Safety Relief Valve
313-4900-233405PCV1140	Safety Relief Valve
319-4900-1188487ALT1PCV912	Safety Relief Valve
319-4900-1188487PCV912	Safety Relief Valve
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3664-71REVAPCV12	Safety Relief Valve
3664-77REVBPCV5	Safety Relief Valve
3676-12REVAPCV21	Safety Relief Valve
3776-10PCV17	Safety Relief Valve
3776-10REVBPCV17	Safety Relief Valve
389588ALT6PCV785	Safety Relief Valve
389588ALT6PCV876	Safety Relief Valve
389588PCV785	Safety Relief Valve
389588PCV876	Safety Relief Valve
389609ALT7PCV1153	Safety Relief Valve
389609PCV1153	Safety Relief Valve
389669ALT8PCV1039	Safety Relief Valve
389669ALT8PCV1047	Safety Relief Valve
389669ALT8PCV1062	Safety Relief Valve
389669PCV1039	Safety Relief Valve
389669PCV1047	Safety Relief Valve
389669PCV1062	Safety Relief Valve
44-1-2-76-175	Safety Relief Valve
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533115PCV838	Safety Relief Valve
533115PCV871	Safety Relief Valve
533131ALT8PCV1015	Safety Relief Valve
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571-3801-1302533PCV12	Safety Relief Valve
571-3801-1302533REVAPCV12	Safety Relief Valve
571-3801-1302723PCV5	Safety Relief Valve
571-3801-1302723REVBPCV5	Safety Relief Valve
571-4900-1302763PCV21	Safety Relief Valve
571-4900-1302763REVAPCV21	Safety Relief Valve
575-4900-1442961PCV17	Safety Relief Valve
575-4900-1442961REVBPCV17	Safety Relief Valve
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K1-4900-1000248ALT1PCV21	Safety Relief Valve
K1-4900-1000248ALT1PCV28	Safety Relief Valve
K1-4900-1000248PCV21	Safety Relief Valve
K1-4900-1000248PCV28	Safety Relief Valve
K1-4900-1000250ALT8PCV6	Safety Relief Valve
K1-4900-1000250PCV26	Safety Relief Valve
K1-4900-1000252ALT6PCV3	Safety Relief Valve
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FAQs

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

What is the FSCG of the NSN 4820-00-288-7836?

The FSCG of the NSN 4820-00-288-7836 is 4820

Does the NSN 4820-00-288-7836 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-288-7836 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 4820-00-288-7836 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-288-7836 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 4820-00-288-7836 was assigned to the Federal Catalog?

It was assigned 65 years ago, on Sun, Jan 1, 1961