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6579603 — PISTON,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

6579603: PISTON,VALVE.

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, inside_diameter: 0.563 INCHES NOMINAL IN, outside_diameter: 3.618 INCHES NOMINAL IN, surface_treatment: PASSIVATE, valve_design_control_activity: 53711. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-346-9859, 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
6579603
NSN: 4820-01-346-9859
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 303
inside_diameter0.563 INCHES NOMINAL IN
outside_diameter3.618 INCHES NOMINAL IN
surface_treatmentPASSIVATE
valve_design_control_activity53711
NSN4820-01-346-9859
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6579603 · 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
•
OUTSIDE DIAMETER: 3.618 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.563 INCHES NOMINAL IN
•
SURFACE TREATMENT: PASSIVATE
•
VALVE DESIGN CONTROL ACTIVITY: 53711
•
MATERIAL: STEEL COMP 303
TECHNICAL CHARACTERISTICS
OUTSIDE DIAMETER3.618 INCHES NOMINAL IN
INSIDE DIAMETER0.563 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
VALVE DESIGN CONTROL ACTIVITY53711
MATERIALSTEEL COMP 303
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
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 6579603?
6579603 is a PISTON,VALVE.
What is the NSN for 6579603?
6579603 is cataloged in the U.S. Government catalog under NSN 4820-01-346-9859. 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.