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R3603 5/16IDX5/8OD — Technical Data Sheet

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— · 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

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE TUBE, flexibility: FLEXIBLE, temp_rating: -58.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF, exterior_color: CLEAR, inside_diameter: 0.312 INCHES NOMINAL IN, outside_diameter: 0.625 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4720-00-886-5265, 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 5/16IDX5/8OD
NSN: 4720-00-886-5265
FSC: 4720
CAGE: 61501 — SAINT-GOBAIN PERFORMANCE PLASTICS (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE TUBE
flexibilityFLEXIBLE
temp_rating-58.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
exterior_colorCLEAR
inside_diameter0.312 INCHES NOMINAL IN
outside_diameter0.625 INCHES NOMINAL IN
special_featuresLABORATORY TUBING
inside_surface_conditionSMOOTH
minimum_tensile_strength1650 POUNDS PER SQUARE INCH LBS
cross-sectional_shape_styleROUND
nonmetallic_hardness_rating55.0 NOMINAL SHORE DUROMETER A
NSN4720-00-886-5265
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: R3603 5/16IDX5/8OD · 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
KEY FEATURES
•
EXTERIOR COLOR: CLEAR
•
MINIMUM TENSILE STRENGTH: 1650 POUNDS PER SQUARE INCH LBS
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
INSIDE SURFACE CONDITION: SMOOTH
•
FLEXIBILITY: FLEXIBLE
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE TUBE
•
INSIDE DIAMETER: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EXTERIOR COLORCLEAR
MINIMUM TENSILE STRENGTH1650 POUNDS PER SQUARE INCH LBS
CROSS-SECTIONAL SHAPE STYLEROUND
INSIDE SURFACE CONDITIONSMOOTH
FLEXIBILITYFLEXIBLE
SPECIAL FEATURESLABORATORY TUBING
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE TUBE
INSIDE DIAMETER0.312 INCHES NOMINAL IN
NONMETALLIC HARDNESS RATING55.0 NOMINAL SHORE DUROMETER A
TEMP RATING-58.0 FAHRENHEIT AND 165.0 FAHRENHEIT SINGLE RESPONSE DEGF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
11736139InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6408-25InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C6408-25InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
E3603/0.094IDX0.1560050FTInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
R3603/0.094IDX0.15600InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
E3603/0.094IDX0.15600InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is R3603 5/16IDX5/8OD?
R3603 5/16IDX5/8OD is a RESISTOR,VARIABLE,WIRE WOUND,PRE.
What parts can replace R3603 5/16IDX5/8OD?
There are 26 known substitutes for R3603 5/16IDX5/8OD: 11736139, 6408-25, C6408-25 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for R3603 5/16IDX5/8OD?
R3603 5/16IDX5/8OD is cataloged in the Federal Logistics Information System under NSN 4720-00-886-5265. This indicates validated use in U.S. government and defense supply chains.
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Last verified: October 2026