NSN 4820-00-529-4270 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: A20051, 3466651-511

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-529-4270 safety relief valve
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NSN 4820005294270


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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 4820-00-529-4270 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 4820-00-529-4270 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-529-4270
Categorization Safety or relief valves
Repairability Code

Approximate Weight 0.0lb
Thread Class 3b all ends
Thread Direction Right-hand all ends
Flow Control Device Disk
Bonnet Type Inside screw
Bonnet Attachment Method Integral
Disk Loading Method Spring
Connection Style Flar (tube) all ends
Valve Operation Method Automatic
Connection Type Threaded internal tube all ends
Features Provided Pressure tight outlet side
Maximum Operating Pressure 4000.0 pounds per square inch single response
Thread Size 0.437 inches all ends
Opening Pressure Setting 3700.0 pounds per square inch
Outside Diameter Tube Accommodated 0.250 inches all ends
Material Stainless steel seat
Media For Which Designed Hydraulic fluid, phosphate-ester base single response
Style Designator Straight thru
Thread Series Designator Unf all ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
A20051 HYDRO-AIRE, INC. AX - DLA LAND AND MARITIME
3466651-511 BOEING COMPANY, THE AX - DLA LAND AND MARITIME
3466651-511 BOEING COMPANY, THE AX - DLA LAND AND MARITIME
A20051 HYDRO-AIRE, INC. AX - DLA LAND AND MARITIME
3466651-511 BOEING COMPANY, THE AX - DLA LAND AND MARITIME
3466651-511 BOEING COMPANY, THE AX - DLA LAND AND MARITIME