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391 1803 540 — ACTUATOR,HYDRAULIC-PNEUMATIC,LIN

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

391 1803 540: ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.

ACTUATOR,HYDRAULIC-PNEUMATIC,LIN. Key specifications include material: IRON BODY, thread_direction: UNABLE TO DECODE, first_piston_rod_end_style: EXTERNAL THREADED LOCATION NOT OTHERWISE SPECIFIED, integral_valve_operation_method: HYDRAULIC OR MECHANICAL, first_piston_rod_end_thread_series_designator: NPT LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-367-2865, 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
391 1803 540
NSN: 4810-01-367-2865
FSC: 4810 — Valves, Powered
CAGE: 13829 — PARKER HANNIFIN CORPORATION DIV CYLINDER DIVISION (USA)
SPECIFICATIONS
materialIRON BODY
thread_directionUNABLE TO DECODE
first_piston_rod_end_styleEXTERNAL THREADED LOCATION NOT OTHERWISE SPECIFIED
integral_valve_operation_methodHYDRAULIC OR MECHANICAL
first_piston_rod_end_thread_series_designatorNPT LOCATION NOT OTHERWISE SPECIFIED
NSN4810-01-367-2865
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 391 1803 540 · 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
•
FIRST PISTON ROD END STYLE: EXTERNAL THREADED LOCATION NOT OTHERWISE SPECIFIED
•
THREAD DIRECTION: UNABLE TO DECODE
•
FIRST PISTON ROD END THREAD SERIES DESIGNATOR: NPT LOCATION NOT OTHERWISE SPECIFIED
•
INTEGRAL VALVE OPERATION METHOD: HYDRAULIC OR MECHANICAL
•
MATERIAL: IRON BODY
TECHNICAL CHARACTERISTICS
FIRST PISTON ROD END STYLEEXTERNAL THREADED LOCATION NOT OTHERWISE SPECIFIED
THREAD DIRECTIONUNABLE TO DECODE
FIRST PISTON ROD END THREAD SERIES DESIGNATORNPT LOCATION NOT OTHERWISE SPECIFIED
INTEGRAL VALVE OPERATION METHODHYDRAULIC OR MECHANICAL
MATERIALIRON BODY
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 391 1803 540?
391 1803 540 is a ACTUATOR,HYDRAULIC-PNEUMATIC,LIN.
What is the NSN for 391 1803 540?
391 1803 540 is cataloged in the U.S. Government catalog under NSN 4810-01-367-2865. 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.