NSN 4820-00-078-3528 Repair Services

Check Valve Overhaul, Repair, and Maintenance

MPN: 646-16D, 215-33331-1

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-078-3528 check valve
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NSN 4820000783528


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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 4820-00-078-3528 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 4820-00-078-3528 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-078-3528
Categorization Check valves of copper having a pressure rating under 850 kpa
Repairability Code

Approximate Weight 0.2lb
Thread Class 3a 1st end
Thread Direction Right-hand 1st end
Flow Control Device Poppet
Disk Loading Method Spring
Connection Style Flared (tube) 1st end
Valve Operation Method Automatic
Connection Type Unthreaded external hose 2nd end
Mounting Position Horizontal or vertical
Thready Qty Per Inch (tpi) 12 1st end
Maximum Operating Pressure 60.0 pounds per square inch single response
Thread Size 1.312 inches 1st end
Seat Angle 37.0 degrees 1st end
Outside Diameter Tube Accommodated 1.000 inches 1st end
Special Features Bulkhead fitting on first end
Material Aluminum alloy flow control device
Media For Which Designed Fuel/oil, hydrocarbon single response
Surface Treatment Anodize
Surface Treatment Specification Mil-a-8625 military specification single treatment response
Style Designator Angle
Thread Series Designator Un 1st end

Part Numbers

Part Number Company RNAAC (Repair Depot)
646-16D EATON CORPORATION KE - NAVAL ICP
215-33331-1 TRIUMPH AEROSTRUCTURES, LLC KE - NAVAL ICP