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56D-4 — MOTOR-PUMP,HYDRAULIC

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

56D-4: MOTOR-PUMP,HYDRAULIC.

The MOTOR-PUMP,HYDRAULIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND FIRST END, flow_control_device: POPPET, nominal_thread_size: 0.250 INCHES FIRST END IN, valve_operation_method: MANUAL. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-181-5601, 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
56D-4
NSN: 4820-01-181-5601
FSC: 4820 — Valves, Nonpowered
CAGE: 79146 — VELVAC INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
flow_control_devicePOPPET
nominal_thread_size0.250 INCHES FIRST END IN
valve_operation_methodMANUAL
thread_series_designatorNPTF FIRST END
NSN4820-01-181-5601
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 56D-4 · 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
•
FLOW CONTROL DEVICE: POPPET
•
STYLE DESIGNATOR: STRAIGHT THRU
•
THREAD DIRECTION: RIGHT-HAND FIRST END
•
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
•
MATERIAL: COPPER ALLOY BODY
•
THREAD SERIES DESIGNATOR: NPTF FIRST END
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPOPPET
STYLE DESIGNATORSTRAIGHT THRU
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
MATERIALCOPPER ALLOY BODY
THREAD SERIES DESIGNATORNPTF FIRST END
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 56D-4?
56D-4 is a MOTOR-PUMP,HYDRAULIC.
What is the NSN for 56D-4?
56D-4 is cataloged in the U.S. Government catalog under NSN 4820-01-181-5601. 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.