NSN 4820-00-051-5222 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: D539A2M18, C1058A2D18

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-051-5222 safety relief valve
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NSN 4820000515222


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AS9120B:2015 ISO 9001 Audited and Certified

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 4820-00-051-5222 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 4820-00-051-5222 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-051-5222
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.0lb
Pipe Size Accommodated 0.250 inches 1st end
Thread Direction Right-hand 1st end
Flow Control Device Poppet
Disk Loading Method Spring
Maximum Operating Temp 250.0 degrees fahrenheit 4th response
Connection Style Plain (pipe) 1st end
Valve Operation Method Manual
Connection Type Threaded external pipe 1st end
Thready Qty Per Inch (tpi) 18 1st end
Maximum Operating Pressure 200.0 pounds per square inch 4th response
Thread Size 0.250 inches 1st end
Opening Pressure Setting 18.0 pounds per square inch
Material Aluminum alloy
Media For Which Designed Ammonia, gaseous 3rd response
Style Designator Straight thru
Thread Series Designator Npt 1st end

Part Numbers

Part Number Company RNAAC (Repair Depot)
D539A2M18 CIRCOR AEROSPACE, INC. AX - DLA LAND AND MARITIME
C1058A2D18 LOCKHEED MARTIN CORPORATION AX - DLA LAND AND MARITIME