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6406591-ASSY-C — MANIFOLD ASSEMBLY,HYDRAULIC

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6406591-ASSY-C: MANIFOLD ASSEMBLY,HYDRAULIC.

The MANIFOLD ASSEMBLY,HYDRAULIC is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, connection_type: BUTT WELD PIPE, furnished_items_and_quantity: 2 VALVE, nominal_pipe_size_accommodated: 2.000 INCHES AND 1.500 INCHES IN, end_item_design_control_activity: 53711, end_item_identification_designator: SEAWOLF CLASS SSN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-417-8685, 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
6406591-ASSY-C
NSN: 4730-01-417-8685
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
connection_typeBUTT WELD PIPE
end_connection_quantity4
furnished_items_and_quantity2 VALVE
nominal_pipe_size_accommodated2.000 INCHES AND 1.500 INCHES IN
end_item_design_control_activity53711
end_item_identification_designatorSEAWOLF CLASS SSN
NSN4730-01-417-8685
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6406591-ASSY-C · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FURNISHED ITEMS AND QUANTITY: 2 VALVE
•
NOMINAL PIPE SIZE ACCOMMODATED: 2.000 INCHES AND 1.500 INCHES IN
•
END ITEM DESIGN CONTROL ACTIVITY: 53711
•
CONNECTION TYPE: BUTT WELD PIPE
•
END CONNECTION QUANTITY: 4
•
END ITEM IDENTIFICATION DESIGNATOR: SEAWOLF CLASS SSN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 VALVE
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES AND 1.500 INCHES IN
END ITEM DESIGN CONTROL ACTIVITY53711
CONNECTION TYPEBUTT WELD PIPE
END CONNECTION QUANTITY4
END ITEM IDENTIFICATION DESIGNATORSEAWOLF CLASS SSN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 2
556-6406591-MPAD-ASSY-CSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6406591Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 6406591-ASSY-C?
6406591-ASSY-C is a MANIFOLD ASSEMBLY,HYDRAULIC.
What parts can replace 6406591-ASSY-C?
There are 2 known substitutes for 6406591-ASSY-C: 556-6406591-MPAD-ASSY-C, 6406591. Substitute compatibility should be verified for your specific system.
What is the NSN for 6406591-ASSY-C?
6406591-ASSY-C is cataloged in the U.S. Government catalog under NSN 4730-01-417-8685. 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.