NSN 4820-00-397-4237 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: P26-776

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-397-4237 safety relief valve
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NSN 4820003974237


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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 4820-00-397-4237 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 4820-00-397-4237 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-397-4237
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.3lb
Thread Class 3a all ends
Thread Direction Right-hand all ends
Flow Control Device Poppet
Disk Loading Method Spring
Valve Discharge Flow Rate 40.0 gallons per minute
Maximum Operating Temp 275.0 degrees fahrenheit single response
Connection Style Plain (tube) all ends
Valve Operation Method Automatic
Connection Type Threaded cartridge all ends
Thread Size 1.125 inches all ends
Opening Pressure Setting 3250.0 pounds per square inch
Material Aluminum alloy
Surface Treatment Anodize
Style Designator Screw-in cartridge
Thread Series Designator Unf all ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
P26-776 CIRCOR AEROSPACE, INC. KE - NAVAL ICP