NSN 4820-00-006-4010 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 7LV221-90, 632869-10, 559A-1M-90, 632869

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-006-4010 safety relief valve
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NSN 4820000064010


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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 4820-00-006-4010 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 4820-00-006-4010 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-006-4010
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.2lb
Thread Direction Right-hand 1st end
Flow Control Device Poppet
Disk Loading Method Spring
Maximum Operating Temp 250.0 degrees fahrenheit single response
Connection Style Plain (pipe) 1st end
Valve Operation Method Automatic
Connection Type Threaded external pipe 1st end
Maximum Operating Pressure 200.0 pounds per square inch single response
Thread Size 0.125 inches 1st end
Opening Pressure Setting 90.0 pounds per square inch
Special Features Pop-off type
Material Aluminum alloy body lining
Material Specification Qq-a-628, alloy2024 federal specification single material response body lining
Media For Which Designed Hydrogen 5th response
Style Designator Straight through note: to be used for valve bodies of one section only.
Thread Series Designator Npt 1st end

Part Numbers

Part Number Company RNAAC (Repair Depot)
7LV221-90 SAF INDUSTRIES LLC AX - DLA LAND AND MARITIME
632869-10 LOCKHEED MARTIN CORPORATION AX - DLA LAND AND MARITIME
559A-1M-90 CIRCOR AEROSPACE, INC. AX - DLA LAND AND MARITIME
632869 LOCKHEED MARTIN CORPORATION AX - DLA LAND AND MARITIME
559A-1M-90 TRANSDIGM, INC. ZZ - USA