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Technical Data Sheet
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RB-603 — 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: ALUMINUM AND RUBBER NATURAL AND STEEL AND STEEL CORROSION RESISTING, nut_style: HEXAGON, body_style: CYLINDRICAL SERVO MOUNTED, bore_shape: STRAIGHT, nut_height: 0.187 INCHES NOMINAL IN, body_length: 2.062 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 4720-00-484-5765, 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
RB-603
NSN: 4720-00-484-5765
FSC: 4720
CAGE: 83065 — ARMSTRONG INDUSTRIAL HOSE PRODUCTS (USA)
SPECIFICATIONS
materialALUMINUM AND RUBBER NATURAL AND STEEL AND STEEL CORROSION RESISTING
nut_styleHEXAGON
body_styleCYLINDRICAL SERVO MOUNTED
bore_shapeSTRAIGHT
nut_height0.187 INCHES NOMINAL IN
body_length2.062 INCHES NOMINAL IN
inscriptionBOTTOM FACE
shaft_styleROUND
bearing_typeBEARING SHAFT
constructionSOLID
pilot_length0.0620 INCHES NOMINAL IN
shaft_length0.875 INCHES NOMINAL IN
NSN4720-00-484-5765
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: RB-603 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
121657InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
32194InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
70130-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2285InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
C42123A20A1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
G1939-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RB-603?
RB-603 is a RESISTOR,VARIABLE,WIRE WOUND,PRE.
What parts can replace RB-603?
There are 20 known substitutes for RB-603: 121657, 32194, 70130-1 and 17 more. Substitute compatibility should be verified for your specific system.
Is RB-603 still available?
RB-603 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026