NSN 4820-00-412-4291 Repair Services
Safety Relief Valve Overhaul, Repair, and Maintenance
MPN: D520A4D125, GV500KF4D125D
Pricing and Lead Time Quote
Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-412-4291 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 4820-00-412-4291 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 4820-00-412-4291 can be offered in repaired, serviceable, overhauled, or inspected conditions.| National Stock Number (NSN) | 4820-00-412-4291 |
| 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 | Poppet |
| Bonnet Type | Inside spring |
| Bonnet Attachment Method | Integral |
| Disk Loading Method | Spring |
| Maximum Operating Temp | 400.0 degrees fahrenheit single response |
| Minimum Operating Temp | -100.0 degrees fahrenheit |
| Connection Style | Flared (tube) all ends |
| Valve Operation Method | Automatic |
| Connection Type | Threaded external tube all ends |
| Features Provided | Pressure tight outlet side |
| Thready Qty Per Inch (tpi) | 20 1st end |
| Adjustable Pressure Range | +60.0/+150.0 pounds per square inch |
| Maximum Operating Pressure | 200.0 pounds per square inch single response |
| Thread Size | 0.437 inches 1st end |
| Seat Angle | 37.0 degrees all ends |
| Opening Pressure Setting | 125.0 pounds per square inch |
| Outside Diameter Tube Accommodated | 0.250 inches 1st end |
| Material | Plastic polytetrafluoroethylene seat |
| Media For Which Designed | Water-oil-gas single response |
| Surface Treatment | Anodize |
| Surface Treatment Specification | Mil-a-86251 military specification single treatment response |
| Style Designator | Straight through w/baffle |
| Thread Series Designator | Unjf all ends |
| Furnished Items And Quantity | 1 deflector cap |
Part Numbers
| Part Number | Company | RNAAC (Repair Depot) |
|---|---|---|
| D520A4D125 | CIRCOR AEROSPACE, INC. | AX - DLA LAND AND MARITIME |
| GV500KF4D125D | NORTHROP GRUMMAN SYSTEMS CORPORATION | KE - NAVAL ICP |