NSN 4820-00-618-7821 Repair Services
Check Valve Overhaul, Repair, and Maintenance
MPN: 518471, 824A4TT4
Pricing and Lead Time Quote
Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-618-7821 check 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 4820-00-618-7821 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 4820-00-618-7821 can be offered in repaired, serviceable, overhauled, or inspected conditions.| National Stock Number (NSN) | 4820-00-618-7821 |
| Categorization | Check valves of materials other than copper, iron or steel |
| Repairability Code | |
| Approximate Weight | 0.0lb |
| Thread Class | 3a 1st end |
| Thread Direction | Right-hand 1st end |
| Flow Control Device | Poppet |
| Disk Loading Method | Spring |
| Maximum Operating Temp | 480.0 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 |
| Mounting Position | Horizontal or vertical |
| Maximum Operating Pressure | 600.0 pounds per square inch single response |
| Thread Size | 0.438 inches 1st end |
| Seat Angle | 37.0 degrees 1st end |
| Special Features | Non-standard cracking pressure 8 in. H2o |
| Material | Aluminum alloy 2024 body |
| Material Specification | Qq-a-225/6 federal specification single material response body |
| Surface Treatment | Anodize |
| Surface Treatment Specification | Mil-a-8625, type 1 military specification single treatment response |
| Style Designator | Straight thru |
| Thread Series Designator | Unjf 1st end |
Part Numbers
| Part Number | Company | RNAAC (Repair Depot) |
|---|---|---|
| 518471 | HAMILTON SUNDSTRAND CORPORATION | MF - ENGINEERING DATA SUPPORT CENTER |
| 824A4TT4 | CIRCOR AEROSPACE, INC. | MF - ENGINEERING DATA SUPPORT CENTER |