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4951631 — VALVE,FLOW CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

4951631: VALVE,FLOW CONTROL.

The VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include valve_operation_method: ELECTRIC MOTOR, end_item_identification: AUXILIARY POWER SYSTEM;, part_name_assigned_by_controlling_agency: FLOW CONTROL VALVE ASSEMBLY, AIR TURBINE STARTER;. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-656-4656, 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
4951631
NSN: 4810-01-656-4656
FSC: 4810 — Valves, Powered
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
valve_operation_methodELECTRIC MOTOR
end_connection_quantity2
end_item_identificationAUXILIARY POWER SYSTEM;
part_name_assigned_by_controlling_agencyFLOW CONTROL VALVE ASSEMBLY, AIR TURBINE STARTER;
NSN4810-01-656-4656
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4951631 · 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
KEY FEATURES
•
END CONNECTION QUANTITY: 2
•
VALVE OPERATION METHOD: ELECTRIC MOTOR
TECHNICAL CHARACTERISTICS
END CONNECTION QUANTITY2
PART NAME ASSIGNED BY CONTROLLING AGENCYFLOW CONTROL VALVE ASSEMBLY, AIR TURBINE STARTER;
END ITEM IDENTIFICATIONAUXILIARY POWER SYSTEM;
VALVE OPERATION METHODELECTRIC MOTOR
OTHER ITEMS IN FSC 4810 — Valves, Powered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4810-00-001-1247 4810-00-001-4499 4810-00-001-4531 4810-00-001-4532 4810-00-001-4554 4810-00-001-4555 4810-00-001-4556 4810-00-001-4611
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4951631?
4951631 is a VALVE,FLOW CONTROL.
What is the NSN for 4951631?
4951631 is cataloged in the U.S. Government catalog under NSN 4810-01-656-4656. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.