NSN 4820-00-591-4000 Repair Services

Valve Seat Overhaul, Repair, and Maintenance

MPN: 50138

Pricing and Lead Time Quote

Submit this form and receive an overhaul/repair pricing and lead time quote for NSN 4820-00-591-4000 valve seat
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NSN 4820005914000


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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 4820-00-591-4000 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 4820-00-591-4000 can be offered in repaired, serviceable, overhauled, or inspected conditions.
National Stock Number (NSN) 4820-00-591-4000
Categorization Parts of taps, cocks, valves and similar appliances
Repairability Code

Approximate Weight 0.0lb
Thread Class 2a single threaded portion
Err Default 0.312 inches single threaded portion
Flange Diameter 0.688 inches
Body Inside Diameter 0.094 inches
Flange Seat To Disk End Height 0.408 inches
Under Flange Height 0.758 inches
Thread Size 0.375 inches single threaded portion
Seating Surface Shape Flat
Material Steel comp 302
Style Designator Threaded flanged
Thread Series Designator Unf single threaded portion

Part Numbers

Part Number Company RNAAC (Repair Depot)
50138 SPIRAX SARCO, INC. AX - DLA LAND AND MARITIME