NSN 4820-00-202-8848 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: AA21302

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-202-8848 safety relief valve
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NSN 4820002028848


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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 4820-00-202-8848 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 4820-00-202-8848 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-202-8848
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.0lb
Flow Control Device Disk
Bonnet Type Inside spring
Bonnet Attachment Method Bolted
Disk Loading Method Spring
Bolt Hole Quantity 6 1st end
Valve Operation Method Automatic or manual
Flange Shape Round with holes 1st end
Connection Type Flange 1st end
Features Provided Valve stem lock shield and bonnet packing and pressure tight outlet side
Adjustable Pressure Range +25.0/+50.0 pounds per square inch
Maximum Operating Pressure 75.0 pounds per square inch single response
Outside Diameter 5.562 inches 1st end
Face To Face Distance 9.000 inches
Thickness 0.438 inches 1st end
Bolt Hole Diameter 0.562 inches 1st end
Bolt Circle Diameter 4.438 inches 1st end
Flange Face Design Plain 1st end
Material Nickel alloy stem
Media For Which Designed Water, fresh single response
Style Designator Straight through flanged ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
AA21302 HUNT VALVE COMPANY INC AX - DLA LAND AND MARITIME
AA21302 HAMMEL DAHL INC AX - DLA LAND AND MARITIME