NSN 4820-00-540-1397 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 100-678

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-540-1397 safety relief valve

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 4820-00-540-1397 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 4820-00-540-1397 can be offered in repaired, serviceable, overhauled, or inspected conditions.

National Stock Number (NSN)	4820-00-540-1397
Categorization	Safety or relief valves
Repairability Code	N
Approximate Weight	0.5lb
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
Valve Discharge Flow Rate	1.0 cubic feet per minute
Connection Style	Gasket sea (boss) all ends
Valve Operation Method	Automatic
Connection Type	Threaded internal boss all ends
Features Provided	Pressure tight outlet side
Thread Size	0.437 inches all ends
Opening Pressure Setting	47.0 pounds per square inch
Outside Diameter Tube Accommodated	0.250 inches all ends
Material	Aluminum alloy stem
Style Designator	"y" angle
Thread Series Designator	Unf all ends

Part Numbers

Part Number	Company	RNAAC (Repair Depot)
100-678	TRANSDIGM, INC.	AX - DLA LAND AND MARITIME