NSN 4820-00-289-1789 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: MILV20065, TYPE1512, R6215AM

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-289-1789 safety relief valve
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NSN 4820002891789


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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 4820-00-289-1789 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 4820-00-289-1789 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-289-1789
Categorization Safety or relief valves
Repairability Code

Approximate Weight 10.0lb
Pipe Size Accommodated 0.500 inches 1st end
Thread Direction Right-hand 1st end
Flow Control Device Disk
Bonnet Type Exposed spring
Bonnet Attachment Method Bolted
Disk Loading Method Spring
Renewable Seat Ring Type Threaded
Bolt Hole Quantity 4 2nd end
Maximum Operating Temp 400.0 degrees fahrenheit single response
Connection Style Plain, optional en (pipe) 1st end
Valve Operation Method Automatic or manual
Flange Shape Round with holes 2nd end
Connection Type Threaded internal pipe 1st end
Features Provided Valve stem lock shield
Thready Qty Per Inch (tpi) 14 1st end
Adjustable Pressure Range +91.0/+144.0 pounds per square inch
Maximum Operating Pressure 300.0 pounds per square inch single response
Thread Size 0.500 inches 1st end
Outside Diameter 3.750 inches 2nd end
Thickness 0.562 inches 2nd end
First Connection Face To Centerline Distance 3.750 inches
Bolt Hole Diameter 0.562 inches 2nd end
Second Connection Face To Centerline Distance 1.812 inches
Bolt Circle Diameter 2.625 inches 2nd end
Flange Face Design Raised straight 2nd end
Raised Face Height 0.250 inches 2nd end
Raised Face Diameter 2.000 inches 2nd end
Material Steel uns j03008 body
Material Specification Mil-s-15083 military specification single material response body
Media For Which Designed Steam single response
Style Designator Angle flanged ends
Thread Series Designator Npt 1st end
Furnished Items And Quantity 1 sight gage
Nondefinitive Specification/std Data 1 type and d composition

Part Numbers

Part Number Company RNAAC (Repair Depot)
MILV20065 MILITARY SPECIFICATIONS AX - DLA LAND AND MARITIME
TYPE1512 DRESSER, INC. HD - NAVAL INVENTORY CONTROL POINT
R6215AM DRESSER, INC. HD - NAVAL INVENTORY CONTROL POINT