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2021-20 — RESISTOR,VARIABLE,WIRE WOUND,PRE

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

2021-20: RESISTOR,VARIABLE,WIRE WOUND,PRE.

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 part is cataloged in the U.S.

Government catalog 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
NIINs: 003090338, 005145899, 005646488, 010337876, 014281801, 016453545
FSC: 5920 — Fuses, Arrestors, Absorbers, and Protectors
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
•
TERMINAL QUANTITY: 2
•
USAGE DESIGN: INDOOR
•
TERMINAL TYPE: WIRE LEAD
•
OVERALL DIAMETER: 0.380 INCHES NOMINAL IN
•
MOUNTING METHOD: WIRE LEAD
•
BREAKDOWN VOLTAGE: 800.000 VOLTS NOMINAL
•
ARRESTER TYPE: RESISTOR
TECHNICAL CHARACTERISTICS
TERMINAL QUANTITY2
USAGE DESIGNINDOOR
TERMINAL TYPEWIRE LEAD
OVERALL DIAMETER0.380 INCHES NOMINAL IN
MOUNTING METHODWIRE LEAD
BREAKDOWN VOLTAGE800.000 VOLTS NOMINAL
ARRESTER TYPERESISTOR
OVERALL LENGTH0.360 INCHES NOMINAL IN
BODY MATERIALCERAMIC
SUBSTITUTES & CROSS-REFERENCES 5
86109-11Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
196-1007-005Reference document
Same NSN cross-reference
Reference document — Secondary reference
86109Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
CG2-800LReference document
Same NSN cross-reference
Reference document — Secondary reference
4007996-5Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 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 5 known substitutes for 2021-20: 86109-11, 196-1007-005, 86109 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2021-20?
2021-20 is cataloged in the U.S. Government catalog under NSN 5920-00-309-0338. 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.