NSN 4820-00-273-9431 Repair Services
Safety Relief Valve Overhaul, Repair, and Maintenance
MPN: 1-1/4IN LL3110B, NMP405
Pricing and Lead Time Quote
Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-273-9431 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 4820-00-273-9431 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 4820-00-273-9431 can be offered in repaired, serviceable, overhauled, or inspected conditions.| National Stock Number (NSN) | 4820-00-273-9431 |
| Categorization | Safety or relief valves |
| Repairability Code | |
| Approximate Weight | 0.0lb |
| Flow Control Device | Disk |
| Bonnet Type | Inside spring |
| Bonnet Attachment Method | Union |
| Disk Loading Method | Spring |
| Renewable Seat Ring Type | Threaded |
| Bolt Hole Quantity | 4 all ends |
| Maximum Operating Temp | 650.0 degrees fahrenheit single response |
| Valve Operation Method | Automatic |
| Flange Shape | Round with holes all ends |
| Connection Type | Flange all ends |
| Features Provided | Pressure tight outlet side |
| Valve Size | 1.250 inches |
| Adjustable Pressure Range | +51.0/+70.0 pounds per square inch |
| Maximum Operating Pressure | 200.0 pounds per square inch single response |
| Outside Diameter | 4.500 inches all ends |
| Thickness | 0.438 inches all ends |
| First Connection Face To Centerline Distance | 4.250 inches |
| Bolt Hole Diameter | 0.562 inches all ends |
| Second Connection Face To Centerline Distance | 5.000 inches |
| Bolt Circle Diameter | 3.375 inches all ends |
| Flange Face Design | Plain all ends |
| Material | Steel flow control device |
| Material Specification | Mil-s-867, class3 military specification single material response flow control device |
| Media For Which Designed | Water-oil-gas 2nd response |
| Style Designator | Angle flanged ends |
Part Numbers
| Part Number | Company | RNAAC (Repair Depot) |
|---|---|---|
| 1-1/4IN LL3110B | KUNKLE INDUSTRIES INC | AX - DLA LAND AND MARITIME |
| NMP405 | KUNKLE INDUSTRIES INC | AX - DLA LAND AND MARITIME |
| 1-1/4IN LL3110B | PENTAIR VALVES & CONTROLS US LP | ZZ - USA |
| NMP405 | PENTAIR VALVES & CONTROLS US LP | ZZ - USA |
| 1-1/4IN LL3110B | ANDERSON GREENWOOD LP | ZZ - USA |
| NMP405 | ANDERSON GREENWOOD LP | ZZ - USA |