NSN 4820-00-035-6235 Repair Services

Restrictor Check Valve Overhaul, Repair, and Maintenance

MPN: K1251MD4-22

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-035-6235 restrictor check valve
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NSN 4820000356235


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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 4820-00-035-6235 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 4820-00-035-6235 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-035-6235
Categorization Check valves of steel
Repairability Code N

Approximate Weight 0.4lb
Thread Class 3b 2nd end
Thread Direction Right-hand 1st end
Aperture Diameter 0.250 inches
Flow Control Device Poppet
Disk Loading Method Spring
Connection Style Gasket seal (boss) 2nd end
Valve Operation Method Automatic
Connection Type Threaded internal boss 2nd end
Mounting Position Horizontal or vertical
Maximum Operating Pressure 3000.0 pounds per square inch single response
Thread Size 0.438 inches 2nd end
Seat Angle 37.0 degrees 1st end
Outside Diameter Tube Accommodated 0.250 inches 2nd end
Material Steel flow control device
Material Specification Mil-p-25732 military specification 2nd material response packing
Media For Which Designed Fuel/oil, hydrocarbon single response
Style Designator Straight thru
Thread Series Designator Unjf 2nd end

Part Numbers

Part Number Company RNAAC (Repair Depot)
K1251MD4-22 ESSEX INDUSTRIES, INC. AX - DLA LAND AND MARITIME