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509-00003-0 — VALVE,SAFETY RELIEF

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

509-00003-0: VALVE,SAFETY RELIEF.

The VALVE,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: PLASTIC BODY, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) FIRST END, flow_control_device: PLUG, valve_operation_method: HYDRAULIC. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-157-7912, 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
509-00003-0
NSN: 4820-01-157-7912
FSC: 4820 — Valves, Nonpowered
CAGE: 9F512 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HYDRAULIC PUMP DIVISION (USA)
SPECIFICATIONS
materialPLASTIC BODY
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
flow_control_devicePLUG
valve_operation_methodHYDRAULIC
NSN4820-01-157-7912
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 509-00003-0 · 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: PLUG
•
CONNECTION STYLE: FLARED (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
STYLE DESIGNATOR: SCREW-IN CARTRIDGE
•
MATERIAL: PLASTIC BODY
•
VALVE OPERATION METHOD: HYDRAULIC
TECHNICAL CHARACTERISTICS
FLOW CONTROL DEVICEPLUG
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
STYLE DESIGNATORSCREW-IN CARTRIDGE
MATERIALPLASTIC BODY
VALVE OPERATION METHODHYDRAULIC
SUBSTITUTES & CROSS-REFERENCES 2
6671002Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
509-00003Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 509-00003-0?
509-00003-0 is a VALVE,SAFETY RELIEF.
What parts can replace 509-00003-0?
There are 2 known substitutes for 509-00003-0: 6671002, 509-00003. Substitute compatibility should be verified for your specific system.
What is the NSN for 509-00003-0?
509-00003-0 is cataloged in the U.S. Government catalog under NSN 4820-01-157-7912. 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.