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Technical Data Sheet
PartsTable / MRO / 500656
500656 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include anode_type: PLAIN FOIL, body_style: W/O MTG FACILITIES, AXIAL TERMINALS, body_length: 0.812 INCHES NOMINAL IN, shaft_style: ROUND, bearing_type: SLEEVE SHAFT, shaft_length: 0.656 INCHES MINIMUM AND 0.719 INCHES MAXIMUM 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 5330-00-443-9604, 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→ 500656
NSN: 5330-00-443-9604
FSC: 5330
CAGE: 1X438 — ALTA ROBBINS, INC. DBA ALTA ROBBINS INC (USA)
SPECIFICATIONS
anode_typePLAIN FOIL
body_styleW/O MTG FACILITIES, AXIAL TERMINALS
body_length0.812 INCHES NOMINAL IN
shaft_styleROUND
bearing_typeSLEEVE SHAFT
shaft_length0.656 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
shaft_runout0.002 INCHES IN
actuator_typeSINGLE SHAFT
body_diameter0.375 INCHES NOMINAL IN
cubic_measure0.867 CUBIC INCHES
lateral_runout0.005 INCHES IN
shaft_diameter0.1245 INCHES MINIMUM AND 0.1248 INCHES MAXIMUM IN
NSN5330-00-443-9604
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 500656 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESCROSS-SECTIONAL SHAPE STYLE:116 IRREGULAR SHAPE FROM OLD FIIG A03200
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
227885-1Interchangeable
interchangeable cross-reference
interchangeable
500-656Interchangeable
interchangeable cross-reference
interchangeable
D68758BTInterchangeable
interchangeable cross-reference
interchangeable
974-499Interchangeable
interchangeable cross-reference
interchangeable
04380029-045Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 500656?
500656 is a RESISTOR,VARIABLE,WIRE WOUND,PRE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 500656?
There are 5 known substitutes for 500656: 227885-1, 500-656, D68758BT and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 500656?
500656 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-443-9604. 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