NSN 4820-00-608-0971 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 55-A-17, 53-A-38

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-608-0971 safety relief valve
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NSN 4820006080971


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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 4820-00-608-0971 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 4820-00-608-0971 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-608-0971
Categorization Safety or relief valves
Repairability Code

Approximate Weight 116.0lb
Flow Control Device Disk or stem
Bonnet Type Outside screw-yoke
Bonnet Attachment Method Bolted
Disk Loading Method Spring
Bolt Hole Quantity 8 1st end
Maximum Operating Temp 650.0 degrees fahrenheit single response
Valve Operation Method Manual
Flange Shape Round with holes 1st end
Connection Type Flange 1st end
Mounting Facility Bracket
Valve Size 3.000 inches
Maximum Operating Pressure 400.0 pounds per square inch single response
Outside Diameter 6.625 inches 1st end
Thickness 0.562 inches 1st end
First Connection Face To Centerline Distance 5.000 inches
Bolt Hole Diameter 0.625 inches 1st end
Second Connection Face To Centerline Distance 5.000 inches
Bolt Circle Diameter 5.500 inches 1st end
Flange Face Design Raised straight 1st end
Raised Face Height 0.062 inches 1st end
Raised Face Diameter 4.750 inches 1st end
Material Steel uns j03008 seat
Style Designator Angle flanged ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
55-A-17 AMETEK INC HD - NAVAL INVENTORY CONTROL POINT
53-A-38 AMETEK INC HD - NAVAL INVENTORY CONTROL POINT