NSN 4820-00-440-3699 Repair Services

Safety Relief Valve Overhaul, Repair, and Maintenance

MPN: 8516PC1251T, 3313367PC1251-T, E8516Y51M, 8576-001PCAHP174

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-440-3699 safety relief valve
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NSN 4820004403699


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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 4820-00-440-3699 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 4820-00-440-3699 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-440-3699
Categorization Safety or relief valves
Repairability Code

Approximate Weight 42.7lb
Thread Class 3a 2nd end
Thread Direction Right-hand all ends
Flow Control Device Disk or stem
Bonnet Type Inside spring
Bonnet Attachment Method Bolted
Disk Loading Method Spring
Connection Style Plain (tube) all ends
Valve Operation Method Automatic or manual
Connection Type Threaded external tube all ends
Valve Size 1.5000 inches
Thready Qty Per Inch (tpi) 12 2nd end
Thread Size 2.875 inches 2nd end
First Connection Face To Centerline Distance 5.5000 inches
Second Connection Face To Centerline Distance 6.187 inches
Material Rubber butadiene-acrylonitrile class nbr packing
Style Designator Err-090
Thread Series Designator Uns all ends

Part Numbers

Part Number Company RNAAC (Repair Depot)
8516PC1251T ANDERSON GREENWOOD LP HD - NAVAL INVENTORY CONTROL POINT
3313367PC1251-T NAVAL SEA SYSTEMS COMMAND HD - NAVAL INVENTORY CONTROL POINT
E8516Y51M NAVAL SEA SYSTEMS COMMAND HD - NAVAL INVENTORY CONTROL POINT
8576-001PCAHP174 ELECTRIC BOAT CORPORATION HD - NAVAL INVENTORY CONTROL POINT
E8516Y51M ELECTRIC BOAT CORPORATION HD - NAVAL INVENTORY CONTROL POINT
E8516Y51M ANDERSON GREENWOOD LP ZZ - USA