NSN 4820-00-287-3147 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 5VS27

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-287-3147 safety relief valve
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NSN 4820002873147


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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 4820-00-287-3147 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 4820-00-287-3147 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-287-3147
Categorization Safety or relief valves
Repairability Code D

When repair is beyond lower level maintenance capability, evacuate the item to depot. disposal is not authorized below wholesale level.

Approximate Weight 0.0lb
Flow Control Device Disk
Bonnet Type Exposed spring
Bonnet Attachment Method Bolted
Disk Loading Method Spring
Valve Discharge Flow Rate 49750.0 pounds per hour
Renewable Seat Ring Type Threaded
Bolt Hole Quantity 9 2nd end
Flange Shape Round with holes 2nd end
Connection Type Flange 1st end
Valve Size 2.500 inches
Opening Pressure Setting 1350.0 pounds per square inch
Outside Diameter 9.625 inches 1st end
Thickness 1.625 inches 1st end
First Connection Face To Centerline Distance 7.000 inches
Bolt Hole Diameter 1.062 inches 1st end
Second Connection Face To Centerline Distance 7.750 inches
Bolt Circle Diameter 7.688 inches 2nd end
Flange Face Design Plain 2nd end
Raised Face Height 0.687 inches 1st end
Raised Face Diameter 6.375 inches 1st end
Material Copper alloy body
Style Designator Angle flanged ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
5VS27 ASHCROFT INC. HD - NAVAL INVENTORY CONTROL POINT