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Technical Data Sheet
PartsTable / COMPONENT / R3603
R3603 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The CAPACITOR,FIXED,ELECTROLYTIC is a the manufacturer cache protection component designed to preserve data integrity during power loss events in enterprise server and storage controller environments. Key specifications include material: RUBBER TUBE, flexibility: FLEXIBLE, temp_rating: 140.0 FAHRENHEIT SINGLE RESPONSE DEGF, exterior_color: CLEAR, inside_diameter: 0.250 INCHES NOMINAL IN, outside_diameter: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-043-1466, 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
R3603
NSN: 4720-00-043-1466
FSC: 4720
CAGE: 61501 — SAINT-GOBAIN PERFORMANCE PLASTICS (USA)
SPECIFICATIONS
materialRUBBER TUBE
flexibilityFLEXIBLE
temp_rating140.0 FAHRENHEIT SINGLE RESPONSE DEGF
exterior_colorCLEAR
inside_diameter0.250 INCHES NOMINAL IN
outside_diameter0.375 INCHES NOMINAL IN
special_featuresCHANGE FSC AND INC.
features_providedFLEXIBLE
operating_pressure16.1 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
fsc_application_dataAIR CONDITIONER
end_item_identificationHELICOPTER, IROQUOIS HH/UH-1
inside_surface_conditionSMOOTH
NSN4720-00-043-1466
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: R3603 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
E3603/0.094IDX0.1560050FTInterchangeable
interchangeable cross-reference
interchangeable
R3603/0.094IDX0.15600Interchangeable
interchangeable cross-reference
interchangeable
E3603/0.094IDX0.15600Interchangeable
interchangeable cross-reference
interchangeable
147T1025-17Interchangeable
interchangeable cross-reference
interchangeable
R3603Interchangeable
interchangeable cross-reference
interchangeable
4720PL1805110Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R3603?
R3603 is a CAPACITOR,FIXED,ELECTROLYTIC.
What parts can replace R3603?
There are 26 known substitutes for R3603: E3603/0.094IDX0.1560050FT, R3603/0.094IDX0.15600, E3603/0.094IDX0.15600 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R3603?
R3603 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-00-043-1466. 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: July 2026