NSN 4820-00-287-4105 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 460-0275-000, 51-143PC580, 51-160PC580, 51-332PC580, 51-335PC580, 51-391PC580, 51-449PC580, M36461-1PC46, M36548-1PC580, M36558-2ALT1PC580, M36558-2PC580, M36737PC580, M36812PC580, V009

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-287-4105 safety relief valve
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NSN 4820002874105


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AS9120B:2015 ISO 9001 Audited and Certified

FAA 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 4820-00-287-4105 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 4820-00-287-4105 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-287-4105
Categorization Safety or relief valves
Repairability Code

Approximate Weight 5.0lb
Pipe Size Accommodated 1.250 inches 1st end
Thread Direction Right-hand all ends
Flow Control Device Disk
Bonnet Type Exposed spring
Bonnet Attachment Method Union
Disk Loading Method Spring
Maximum Operating Temp 425.0 degrees fahrenheit 1st response
Connection Style Plain, optional en (pipe) all ends
Valve Operation Method Automatic or manual
Connection Type Threaded internal pipe all ends
Features Provided Valve stem lock shield
Adjustable Pressure Range +4.0/+9.0 pounds per square inch
Maximum Operating Pressure 300.0 pounds per square inch 2nd response
Thread Size 1.250 inches all ends
Material Nickel alloy seat
Media For Which Designed Air 2nd response
Style Designator Angle
Thread Series Designator Npt all ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
460-0275-000 MECHANICAL EQUIPMENT COMPANY, INC. AX - DLA LAND AND MARITIME
51-143PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
51-160PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
51-332PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
51-335PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
51-391PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
51-449PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
M36461-1PC46 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
M36548-1PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
M36558-2ALT1PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
M36558-2PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
M36737PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
M36812PC580 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME
V009 BATH IRON WORKS CORPORATION AX - DLA LAND AND MARITIME