NSN 4820-00-491-8039 Repair Services

Stop-check Valve Overhaul, Repair, and Maintenance

MPN: 803-2177525-C831 AF, 803-2177525-C831 AFL1

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-491-8039 stop-check valve
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NSN 4820004918039


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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 4820-00-491-8039 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 4820-00-491-8039 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-491-8039
Categorization Check valves of steel
Repairability Code D

When repair is beyond lower level maintenance capability, evacuate the item to depot. disposal is not authorized below wholesale level.

Approximate Weight 50.0lb
Pipe Size Accommodated 2.000 inches 1st end
Flow Control Device Disk
Bonnet Type Outside screw-yoke
Bonnet Attachment Method Bolted
Disk Loading Method Weight
Maximum Operating Temp 775.0 degrees fahrenheit single response
Connection Style Socket (pipe) 1st end
Valve Operation Method Manual
Connection Type Unthreaded internal pipe 1st end
Mounting Position Horizontal
Features Provided Bonnet packing
Criticality Code Justification Zzzy
Material Steel body
Style Designator Straight thru
Test Data Document 80064-810-2177525 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Reference Number Differentiating Characteristics Material controlled iaw navsea 0948-lp-045-7010 material control standard for level i items

Part Numbers

Part Number Company RNAAC (Repair Depot)
803-2177525-C831 AF NAVAL SHIP SYSTEMS COMMAND HD - NAVAL INVENTORY CONTROL POINT
803-2177525-C831 AFL1 NAVAL INVENTORY CONTROL POINT HD - NAVAL INVENTORY CONTROL POINT