NSN 4820-00-191-6881 Repair Services
Safety Relief Valve Overhaul, Repair, and Maintenance
MPN: P20-383, C491-2
Pricing and Lead Time Quote
Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-191-6881 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 4820-00-191-6881 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 4820-00-191-6881 can be offered in repaired, serviceable, overhauled, or inspected conditions.| National Stock Number (NSN) | 4820-00-191-6881 |
| Categorization | Safety or relief valves |
| Repairability Code | N |
| Approximate Weight | 0.0lb |
| Thread Class | 3a 1st end |
| Thread Direction | Right-hand 1st end |
| Flow Control Device | Disk |
| Valve Discharge Flow Rate | 200.0 cubic feet per minute |
| Maximum Operating Temp | 450.0 degrees fahrenheit single response |
| Connection Style | External seat for gasket seal (boss) 1st end |
| Valve Operation Method | Automatic |
| Connection Type | Threaded external boss 1st end |
| Features Provided | Valve stem lock shield and pressure tight outlet side |
| Thready Qty Per Inch (tpi) | 12 1st end |
| Adjustable Pressure Range | +47.0/+53.0 pounds per square inch |
| Maximum Operating Pressure | 60.0 pounds per square inch single response |
| Thread Size | 1.312 inches 1st end |
| Opening Pressure Setting | 50.0 pounds per square inch |
| Outside Diameter Tube Accommodated | 1.000 inches 1st end |
| Material | Aluminum alloy 2024 |
| Material Specification | Qq-a-225/6, alloy2024 federal specification all material responses |
| Media For Which Designed | Air single response |
| Surface Treatment | Anodize |
| Surface Treatment Specification | Mil-a-8625 military specification single treatment response |
| Style Designator | Straight thru |
| Thread Series Designator | Un 1st end |
Part Numbers
| Part Number | Company | RNAAC (Repair Depot) |
|---|---|---|
| P20-383 | CIRCOR AEROSPACE, INC. | SE - SAN ANTONIO AIR LOGISTICS CENTER |
| C491-2 | LOCKHEED MARTIN CORPORATION | SE - SAN ANTONIO AIR LOGISTICS CENTER |