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203-C-303-ITEM 24 — Technical Data Sheet

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— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The PILOT,RELIEF VALVE is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: STEEL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-019-4790, 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
203-C-303-ITEM 24
NSN: 4820-01-019-4790
FSC: 4820
CAGE: 09990 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV HYDRAULIC VALVE DIVISION (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL
NSN4820-01-019-4790
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 203-C-303-ITEM 24 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
RP-800-S-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
203-C-303InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
RP-800-S-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
007117InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
203-C-303-ITEMInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
7-A-117InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203-C-303-ITEM 24?
203-C-303-ITEM 24 is a PILOT,RELIEF VALVE.
What parts can replace 203-C-303-ITEM 24?
There are 6 known substitutes for 203-C-303-ITEM 24: RP-800-S-2, 203-C-303, RP-800-S-4 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 203-C-303-ITEM 24?
203-C-303-ITEM 24 is cataloged in the Federal Logistics Information System under NSN 4820-01-019-4790. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026