PartsTable
Technical Data Sheet
PartsTable / MRO / 2021-20
2021-20 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include material: RUBBER, body_style: CYLINDRICAL BUSHING MOUNTED, body_length: 1.125 INCHES NOMINAL IN, flat_height: 0.107 INCHES NOMINAL IN, shaft_style: ROUND, FLATTED, shaft_length: 0.312 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 5920-00-309-0338, 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→ 2021-20
NSN: 5920-00-309-0338
FSC: 5920
CAGE: 23663 — JOSLYN PRODUCTS (USA)
SPECIFICATIONS
materialRUBBER
body_styleCYLINDRICAL BUSHING MOUNTED
body_length1.125 INCHES NOMINAL IN
flat_height0.107 INCHES NOMINAL IN
shaft_styleROUND, FLATTED
shaft_length0.312 INCHES NOMINAL IN
usage_designINDOOR
actuator_typeSINGLE SHAFT
arrester_typeRESISTOR
body_diameter0.500 INCHES NOMINAL IN
body_materialCERAMIC
terminal_typeWIRE LEAD
NSN5920-00-309-0338
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,PRE TITLE COMPONENT PN 2021-20 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
•
OVERALL DIAMETER: 0.380 INCHES NOMINAL IN
•
USAGE DESIGN: INDOOR
•
ARRESTER TYPE: RESISTOR
•
TERMINAL QUANTITY: 2
•
TERMINAL TYPE: WIRE LEAD
•
BREAKDOWN VOLTAGE: 800.000 VOLTS NOMINAL
•
BODY MATERIAL: CERAMIC
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL DIAMETER0.380 INCHES NOMINAL IN
USAGE DESIGNINDOOR
ARRESTER TYPERESISTOR
TERMINAL QUANTITY2
TERMINAL TYPEWIRE LEAD
BREAKDOWN VOLTAGE800.000 VOLTS NOMINAL
OVERALL LENGTH0.360 INCHES NOMINAL IN
BODY MATERIALCERAMIC
MOUNTING METHODWIRE LEAD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
1820-12Interchangeable
interchangeable cross-reference
interchangeable
11-114-7409-75Interchangeable
interchangeable cross-reference
interchangeable
202120Interchangeable
interchangeable cross-reference
interchangeable
13220E3970Interchangeable
interchangeable cross-reference
interchangeable
CG75LInterchangeable
interchangeable cross-reference
interchangeable
86109-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2021-20?
2021-20 is a RESISTOR,VARIABLE,WIRE WOUND,PRE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 2021-20?
There are 25 known substitutes for 2021-20: 1820-12, 11-114-7409-75, 202120 and 22 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2021-20?
2021-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5920-00-309-0338. 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