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Technical Data Sheet
PartsTable / COMPONENT / D15-646MPC480
D15-646MPC480 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include end_item_identification: STEAM TURBINE, SHIPS PROPULSION SYSTEM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-306-1437, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
D15-646MPC480
NSN: 4820-00-306-1437
FSC: 4820
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
end_item_identificationSTEAM TURBINE, SHIPS PROPULSION SYSTEM
NSN4820-00-306-1437
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: D15-646MPC480 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONSTEAM TURBINE, SHIPS PROPULSION SYSTEM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
52117Interchangeable
interchangeable cross-reference
interchangeable
717-000814Interchangeable
interchangeable cross-reference
interchangeable
40214Interchangeable
interchangeable cross-reference
interchangeable
59066D71-100Interchangeable
interchangeable cross-reference
interchangeable
N372-1PC911Interchangeable
interchangeable cross-reference
interchangeable
K-1103 CAT N0 8Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D15-646MPC480?
D15-646MPC480 is a VALVE,FLOW CONTROL.
What parts can replace D15-646MPC480?
There are 17 known substitutes for D15-646MPC480: 52117, 717-000814, 40214 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D15-646MPC480?
D15-646MPC480 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-306-1437. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026