NSN 4820-00-552-3508 Repair Services
Safety Relief Valve Overhaul, Repair, and Maintenance
MPN: 631B4 1-4 2, 631B-4-1/4-2
Pricing and Lead Time Quote
Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-552-3508 safety relief valveFAA 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 4820-00-552-3508 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 4820-00-552-3508 can be offered in repaired, serviceable, overhauled, or inspected conditions.| National Stock Number (NSN) | 4820-00-552-3508 |
| Categorization | Safety or relief valves |
| Repairability Code | N |
| Approximate Weight | 1.0lb |
| Thread Direction | Right-hand 1st end |
| Flow Control Device | Poppet |
| Bonnet Type | Inside screw |
| Bonnet Attachment Method | Threaded |
| Disk Loading Method | Spring |
| Maximum Operating Temp | 225.0 degrees fahrenheit single response |
| Connection Style | Plain, optional en (pipe) 1st end |
| Valve Operation Method | Automatic |
| Connection Type | Threaded internal pipe 1st end |
| Features Provided | Pressure tight outlet side |
| Maximum Operating Pressure | 3100.0 pounds per square inch single response |
| Thread Size | 0.250 inches 2nd end |
| Opening Pressure Setting | 200.0 pounds per square inch |
| Special Features | The end connection identified above as the second end is the valve inlet |
| Material | Steel comp 416 flow control device |
| Material Specification | Qq-b-626, alloy 360 federal specification single material response body |
| Media For Which Designed | Fuel/oil, hydrocarbon 3rd response |
| Style Designator | Angle |
| Thread Series Designator | Anpt 2nd end |
Part Numbers
| Part Number | Company | RNAAC (Repair Depot) |
|---|---|---|
| 631B4 1-4 2 | TELEDYNE INDUSTRIES INC | AX - DLA LAND AND MARITIME |
| 631B-4-1/4-2 | PARKER-HANNIFIN CORPORATION | ZZ - USA |