A540-3-4-125PSI

View detailed technical data, stock status, and sourcing information for: A540-3-4-125PSI
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Federal Supply Group

Valves

Federal Supply Classification

4820 Nonpowered Valves

National Stock Number

4820-00-287-5651

Item Name Code

16996

Assigment Date

01/01/1963 (63 years ago)

210.0 fahrenheit temp rating, plain first end style designator, 0.750 inches first end nominal pipe size accommodated, threaded internal pipe first end connection type, "angle give "adqm" and "adqn" only if flanged one or two ends" body style

Product Characteristics

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

Body Style: "angle give "adqm" and "adqn" only if flanged one or two ends"
Temp Rating: 210.0 fahrenheit
First End Connection Type: threaded internal pipe
First End Style Designator: plain
First End Nominal Pipe Size Accommodated: 0.750 inches
First End Thread Direction: right-hand
Second End Relationship With First End: not identical
Second End Connection Type: threaded external pipe
Second End Style Designator: plain
Second End Nominal Pipe Size Accommodated: 0.750 inches
Second End Thread Direction: right-hand
Flow Control Device: poppet
End Connection Quantity: 2
Adjustable Pressure Range: +75.0 to 175.0 pounds per square inch
Temp Adjustability: adjustable
Temp Control Device Type: fusible
Special Features: w/o lever
Material: copper alloy body
Material: copper alloy flow control device
Material: copper alloy stem

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
A540-3-4-125PSI	Pressure and Temper Relief Valve

FAQs

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

What is the FSCG of the NSN 4820-00-287-5651?

The FSCG of the NSN 4820-00-287-5651 is 4820

Does the NSN 4820-00-287-5651 have a Schedule B code assigned?

Yes, the Schedule B code is 8481400000

Does NSN 4820-00-287-5651 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 4820-00-287-5651 contain precious materials?

Precious metal content is unknown

Does NSN 4820-00-287-5651 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 4820-00-287-5651 was assigned to the Federal Catalog?

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