NSN 4820-00-439-6931 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: A80292, 104952, 4-3056-6, G-104952

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-439-6931 safety relief valve
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NSN 4820004396931


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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 4820-00-439-6931 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 4820-00-439-6931 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-439-6931
Categorization Safety or relief valves
Repairability Code F

If condemned or uneconomically repairable , then dispose at direct support (ds) level.

Approximate Weight 0.4lb
Thread Class 3b all ends
Thread Direction Right-hand all ends
Flow Control Device Piston
Disk Loading Method Spring
Valve Discharge Flow Rate 2.0 gallons per minute
Maximum Operating Temp 160.0 degrees fahrenheit single response
Connection Style Gasket sea (boss) all ends
Valve Operation Method Automatic
Connection Type Threaded internal boss all ends
Thready Qty Per Inch (tpi) 20 all ends
Maximum Operating Pressure 3300.0 pounds per square inch single response
Thread Size 0.437 inches all ends
Seat Angle 45.0 degrees all ends
Opening Pressure Setting 65.0 pounds per square inch
Outside Diameter Tube Accommodated 0.250 inches all ends
Material Stainless steel flow control device
Style Designator Straight through note: to be used for valve bodies of separable sections.
Thread Series Designator Unf all ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
A80292 HYDRO-AIRE, INC. AX - DLA LAND AND MARITIME
104952 AIR LOGISTICS CORPORATION AX - DLA LAND AND MARITIME
4-3056-6 TELEDYNE INDUSTRIES INC AX - DLA LAND AND MARITIME
G-104952 AIRBUS HELICOPTERS DEUTSCHLAND GMBH ZG - GERMANY