NSN 4820-00-078-3299 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: A63256-3, 215-32359-3

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-078-3299 safety relief valve
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NSN 4820000783299


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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 4820-00-078-3299 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 4820-00-078-3299 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-078-3299
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.0lb
Thread Class 3b all ends
Thread Direction Right-hand all ends
Flow Control Device Piston
Bonnet Type Inside spring
Bonnet Attachment Method Threaded
Disk Loading Method Spring
Valve Discharge Flow Rate 25.0 gallons per minute
Renewable Seat Ring Type Pressed-in
Maximum Operating Temp 275.0 degrees fahrenheit single response
Connection Style Gasket sea (boss) all ends
Valve Operation Method Automatic
Connection Type Threaded internal boss all ends
Features Provided Bonnet packing
Thready Qty Per Inch (tpi) 12 all ends
Adjustable Pressure Range +140.0 to 150.0 pounds per square inch
Maximum Operating Pressure 200.0 pounds per square inch single response
Thread Size 1.500 inches all ends
Material Steel seat
Media For Which Designed Hydraulic fluid, petroleum base single response
Surface Treatment Enamel
Style Designator Straight thru
Test Data Document 80378-205-15-2070 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Thread Series Designator Un all ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
A63256-3 HYDRO-AIRE, INC. KE - NAVAL ICP
215-32359-3 TRIUMPH AEROSTRUCTURES, LLC KE - NAVAL ICP