NSN 4820-00-202-8261 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: NMP414MDL-LL3120A

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-202-8261 safety relief valve
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NSN 4820002028261


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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 4820-00-202-8261 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 4820-00-202-8261 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-202-8261
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.0lb
Flow Control Device Disk
Bonnet Type Inside spring
Bonnet Attachment Method Union
Disk Loading Method Spring
Bolt Hole Quantity 3 2nd end
Maximum Operating Temp 650.0 degrees fahrenheit single response
Valve Operation Method Automatic
Flange Shape Round with holes all ends
Connection Type Flange all ends
Mounting Facility Bracket
Features Provided Pressure tight outlet side
Valve Size 0.500 inches
Adjustable Pressure Range +678.0/+820.0 pounds per square inch
Maximum Operating Pressure 750.0 pounds per square inch single response
Outside Diameter 3.750 inches 1st end
Thickness 0.562 inches 1st end
First Connection Face To Centerline Distance 3.250 inches
Bolt Hole Diameter 0.562 inches all ends
Second Connection Face To Centerline Distance 3.125 inches
Bolt Circle Diameter 2.625 inches 1st end
Flange Face Design Plain 2nd end
Raised Face Height 0.250 inches 1st end
Raised Face Diameter 2.000 inches 1st end
Material Stainless steel stem
Material Specification Qq-s-763 federal specification single material response stem
Media For Which Designed Water-oil-gas 2nd response
Style Designator Angle flanged ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
NMP414MDL-LL3120A KUNKLE INDUSTRIES INC AX - DLA LAND AND MARITIME
NMP414MDL-LL3120A PENTAIR VALVES & CONTROLS US LP ZZ - USA
NMP414MDL-LL3120A ANDERSON GREENWOOD LP ZZ - USA