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7603-18 — RESISTOR,VARIABLE,WIRE WOUND,PRE

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

7603-18: RESISTOR,VARIABLE,WIRE WOUND,PRE.

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include body_style: CYLINDRICAL BUSHING MOUNTED, body_length: 3.985 INCHES NOMINAL IN, shaft_style: ROUND, SLOTTED, bearing_type: BALL SHAFT, shaft_length: 0.563 INCHES NOMINAL IN, shaft_runout: 0.002 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5905-00-617-9557, 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
MRO→ MRO_GENERAL→ 7603-18
NSN: 5905-00-617-9557
FSC: 5905 — Resistor
CAGE: 73138 — BI TECHNOLOGIES CORPORATION DIV BI TECHNOLOGIES CORP. (USA)
SPECIFICATIONS
body_styleCYLINDRICAL BUSHING MOUNTED
body_length3.985 INCHES NOMINAL IN
shaft_styleROUND, SLOTTED
bearing_typeBALL SHAFT
shaft_length0.563 INCHES NOMINAL IN
shaft_runout0.002 INCHES IN
actuator_typeSINGLE SHAFT
body_diameter1.812 INCHES NOMINAL IN
lateral_runout0.002 INCHES IN
overall_length4.548 INCHES NOMINAL IN
shaft_diameter0.250 INCHES NOMINAL IN
shaft_end_play0.00500 INCHES IN
NSN5905-00-617-9557
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,PRE TITLE COMPONENT PN 7603-18 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
•
MAXIMUM RUNNING TORQUE: 0.80 INCH-OUNCES IN
•
BODY DIAMETER: 1.812 INCHES NOMINAL IN
•
LATERAL RUNOUT: 0.002 INCHES IN
•
ELECTRICAL RESISTANCE PER SECTION: 5.000 KILOHMS ALL SECTIONS
•
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER: 125.0 ALL SECTIONS
•
SECTION QUANTITY: 2
•
SHAFT DIAMETER: 0.250 INCHES NOMINAL IN
•
FRAGILITY FACTOR: MODERATELY DELICATE
TECHNICAL CHARACTERISTICS
MAXIMUM RUNNING TORQUE0.80 INCH-OUNCES IN
BODY DIAMETER1.812 INCHES NOMINAL IN
LATERAL RUNOUT0.002 INCHES IN
ELECTRICAL RESISTANCE PER SECTION5.000 KILOHMS ALL SECTIONS
AMBIENT TEMP IN DEG CELSIUS PER SECTION AT ZERO PERCENT RATED POWER125.0 ALL SECTIONS
SECTION QUANTITY2
SHAFT DIAMETER0.250 INCHES NOMINAL IN
FRAGILITY FACTORMODERATELY DELICATE
FUNCTION CHARACTERISTIC PER SECTIONALL SECTIONS LINEAR
BODY STYLECYLINDRICAL BUSHING MOUNTED
SUBSTITUTES & CROSS-REFERENCES 1
800-1009Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7603-18?
7603-18 is a RESISTOR,VARIABLE,WIRE WOUND,PRE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 7603-18?
There is 1 known substitute for 7603-18: 800-1009. Substitute compatibility should be verified for your specific system.
What is the NSN for 7603-18?
7603-18 is cataloged in the U.S. Government catalog under NSN 5905-00-617-9557. 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.