NSN 4820-00-023-7140 Repair Services
Safety Relief Valve Overhaul, Repair, and Maintenance
MPN: 658074-3, P37-220
Pricing and Lead Time Quote
Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-023-7140 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 4820-00-023-7140 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 4820-00-023-7140 can be offered in repaired, serviceable, overhauled, or inspected conditions.| National Stock Number (NSN) | 4820-00-023-7140 |
| Categorization | Safety or relief valves |
| Repairability Code | |
| 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 | Threaded |
| Disk Loading Method | Spring |
| Connection Style | Flared (tube) 1st end |
| Valve Operation Method | Automatic |
| Features Provided | Valve stem lock shield and bonnet packing and pressure tight outlet side |
| Thready Qty Per Inch (tpi) | 18 1st end |
| Adjustable Pressure Range | +41.0 to 47.0 pounds per square inch |
| Maximum Operating Pressure | 347.0 pounds per square inch single response |
| Thread Size | 0.437 inches 1st end |
| Seat Angle | 37.0 degrees 1st end |
| Outside Diameter Tube Accommodated | 0.250 inches 1st end |
| Material | Aluminum alloy seat |
| Style Designator | Straight thru |
| Thread Series Designator | Unf 1st end |
Part Numbers
| Part Number | Company | RNAAC (Repair Depot) |
|---|---|---|
| 658074-3 | LOCKHEED MARTIN CORPORATION | 9Z - DLA LOGISTICS INFORMATION SERVICE - K |
| P37-220 | CIRCOR AEROSPACE, INC. | SB - 645 MSSQ/MSIAPCS |