NSN 4820-00-262-0381 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 6532L4Y, 561D, 6664436, SP8-4M

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-262-0381 safety relief valve
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NSN 4820002620381


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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 4820-00-262-0381 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 4820-00-262-0381 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-262-0381
Categorization Safety or relief valves
Repairability Code N

Approximate Weight 0.4lb
Pipe Size Accommodated 0.250 inches 1st end
Thread Direction Right-hand 1st end
Flow Control Device Poppet
Bonnet Type Inside spring
Bonnet Attachment Method Threaded
Disk Loading Method Spring
Connection Style Plain (pipe) 1st end
Valve Operation Method Automatic
Connection Type Threaded external pipe 1st end
Features Provided Bonnet packing
Thready Qty Per Inch (tpi) 18 1st end
Adjustable Pressure Range +68.0/+82.0 pounds per square inch
Thread Size 0.250 inches 1st end
Surface Treatment Passivate
Style Designator Angle
Thread Series Designator Npt 1st end

Part Numbers

Part Number Company RNAAC (Repair Depot)
6532L4Y CIRCOR INSTRUMENTATION TECHNOLOGIES, SB - 645 MSSQ/MSIAPCS
561D CIRCOR INSTRUMENTATION TECHNOLOGIES, SB - 645 MSSQ/MSIAPCS
6664436 SCHNEIDER ELECTRIC INDUSTRIES SAS ZF - FRANCE
SP8-4M SAGANA INSTRUMENTATION ZF - FRANCE
6664436 SCHNEIDER ELECTRIC FRANCE ZZ - USA