NSN 4820-00-063-7404 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 137, 137-1-1/2IN125PSI

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-063-7404 safety relief valve
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NSN 4820000637404


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FAA and EASA Part 145 Certified Repair Stations Ensuring the highest standards of quality and compliance for our clients' needs.

We specialize in the repair and refurbishment of nsn components. From mechanical assemblies to rotor blades, our comprehensive capabilities cover a wide range of NSN parts, providing cost effective solutions to extend the operational life of vital equipment.

NSN 4820-00-063-7404 has been designated as a repairable item and has been included in our capabilities catalog. If you require overhaul or repair services use the form on this page to send us your information. We will provide you with a lead time and price quote.

Repairability and Datasheet

NSN 4820-00-063-7404 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-063-7404
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.0lb
Pipe Size Accommodated 2.000 inches 2nd end
Thread Direction Right-hand 1st end
Flow Control Device Disk
Bonnet Type Inside spring
Bonnet Attachment Method Threaded
Disk Loading Method Spring
Maximum Operating Temp 250.0 degrees fahrenheit single response
Connection Style Plain, optional en (pipe) all ends
Valve Operation Method Manual
Connection Type Threaded internal pipe 2nd end
Features Provided Bonnet packing
Thready Qty Per Inch (tpi) 11-1/2 2nd end
Maximum Operating Pressure 125.0 pounds per square inch single response
Thread Size 2.000 inches 2nd end
Opening Pressure Setting 125.0 pounds per square inch
Material Steel stem
Media For Which Designed Water, fresh single response
Style Designator Angle
Thread Series Designator Npt 1st end

Part Numbers

Part Number Company RNAAC (Repair Depot)
137 ANDERSON GREENWOOD LP AX - DLA LAND AND MARITIME
137-1-1/2IN125PSI ANDERSON GREENWOOD LP AX - DLA LAND AND MARITIME