NSN 4820-00-066-2359 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 1556HA

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-066-2359 safety relief valve
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NSN 4820000662359


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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 4820-00-066-2359 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 4820-00-066-2359 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-066-2359
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.0lb
Flow Control Device Disk
Bonnet Type Exposed spring
Bonnet Attachment Method Bolted
Disk Loading Method Spring
Maximum Operating Temp 650.0 degrees fahrenheit single response
Valve Operation Method Automatic
Flange Shape Round 1st end
Connection Type Flange 1st end
Features Provided Pressure tight outlet side
Maximum Operating Pressure 900.0 pounds per square inch single response
Opening Pressure Setting 900.0 pounds per square inch
Outside Diameter 7.500 inches 2nd end
Flange Face Design Raised straight 2nd end
Raised Face Height 0.625 inches 1st end
Raised Face Diameter 5.000 inches 2nd end
Special Features 1st connection face to center line distance5.562 in. 2nd connection face to centerlinedistance 6.250 in.
Material Stainless steel seat
Style Designator Angle

Part Numbers

Part Number Company RNAAC (Repair Depot)
1556HA EATON AEROSPACE LLC XX -