PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KR5D521FCapacitor,fixed,mica Dielectric

Cornell-Dubilier Marketing Inc · NSN 5910-00-191-5778 · FSC 5910 · No Item Name Available
Verified by PartsTable
NSN 5910-00-191-5778 — this item is cataloged by the U.S. Government under National Stock Number 5910-00-191-5778. Primary manufacturer part number: KR5D521F.
Features
  • Capacitor,fixed,mica Dielectric — FSC 5910
  • Dissipation Factor at Reference Temp in Percent: 0.1000
  • Body Width: 0.199 INCHES NOMINAL IN
  • Temp Coefficient of Capacitance Range Per Section in Ppm Per Deg Celsius: -100.0 TO 100.0 SINGLE SECTION
  • Terminal Diameter: 0.032 INCHES NOMINAL IN
  • Nonderated Operating Temp: -55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
  • Schematic Diagram Designator: NO COMMON OR GROUNDED ELECTRODE(S)
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Plastic Case construction
General Description

The Capacitor,fixed,mica Dielectric, cataloged under National Stock Number 5910-00-191-5778, is classified within Federal Supply Class 5910 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Cornell-Dubilier Marketing Inc. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5910-00-191-5778
Primary Part NumberKR5D521F
Item NameCapacitor,fixed,mica Dielectric
FSC / FSG5910 / 59 — No Item Name Available
ManufacturerCornell-Dubilier Marketing Inc
StatusACTIVE
Dissipation Factor at Reference Temp in Percent0.1000
Body Width0.199 INCHES NOMINAL IN
Temp Coefficient of Capacitance Range Per Section in Ppm Per Deg Celsius-100.0 TO 100.0 SINGLE SECTION
Terminal Diameter0.032 INCHES NOMINAL IN
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
Schematic Diagram DesignatorNO COMMON OR GROUNDED ELECTRODE(S)
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Terminal Length1.125 INCHES MINIMUM IN
Capacitance Value Per Section520.000 PICOFARADS SINGLE SECTION
Body Height0.454 INCHES NOMINAL IN
Tolerance Range Per Section-1.00 TO 1.00 PERCENT SINGLE SECTION
Nonderated Continuous Voltage Rating and Type Per Section500.0 DC SINGLE SECTION
Insulation Resistance at Reference Temp100000.0 MEGOHMS
Body Length0.720 INCHES NOMINAL IN
Insulation Resistance at Maximum Operating Temp10000.0 MEGOHMS
MaterialPLASTIC CASE
Terminal Surface TreatmentSOLDER
Reliability IndicatorNOT ESTABLISHED
Body StyleW/O MTG FACILITIES, TERMINALS ON OPPOSITE SURFACES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2540-00-102-0150300 INTERCHANGEABLE
Blade,windshield Wiper
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
4320-00-218-392414345P INTERCHANGEABLE
Sleeve,shaft,pump
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5310-00-225-6993 INTERCHANGEABLE
Nut,self-Locking,hexagon
5360-00-321-986010328 INTERCHANGEABLE
Spring,helical,compression
Setra Systems, Inc. Dba Gems Sensors
5999-00-481-8409 INTERCHANGEABLE
Mounting Pad,electrical-Electron
3040-00-600-3029SM-C-187062 INTERCHANGEABLE
Shaft,shouldered
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2825-00-696-078110328 INTERCHANGEABLE
Valve Head
Northrop Grumman Systems Corporation Div Marine Systems
5133-01-018-9814 INTERCHANGEABLE
Drill,twist
4820-01-172-0661 INTERCHANGEABLE
Valve,safety Relief
6145-01-292-5230MIS-20054/19-001 INTERCHANGEABLE
Cable,special Purpose,electrical
Us Army Aviation and Missile Command
Cross-Reference Index
Part NumberManufacturer
CM20D521F Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
10328 Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
CM20D521F Electro Motive Corp Subsidiary of International Electronics Corp (USA)
KR5D521F PRIMARY Cornell-Dubilier Marketing Inc (USA)
Related Parts
2540-00-102-0150INTERCHANGEABLE
BLADE,WINDSHIELD WIPER
300
4320-00-218-3924INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
14345P
5310-00-225-6993INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
5360-00-321-9860INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
10328
5999-00-481-8409INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
3040-00-600-3029INTERCHANGEABLE
SHAFT,SHOULDERED
SM-C-187062
2825-00-696-0781INTERCHANGEABLE
VALVE HEAD
10328
5133-01-018-9814INTERCHANGEABLE
DRILL,TWIST
4820-01-172-0661INTERCHANGEABLE
VALVE,SAFETY RELIEF
6145-01-292-5230INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
MIS-20054/19-001
4720-01-457-9058INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
8415-01-468-6900INTERCHANGEABLE
WEATHER COVER
10328

Frequently Asked Questions

What is NSN 5910-00-191-5778?

NSN 5910-00-191-5778 is a Capacitor,fixed,mica Dielectric, manufactured by Cornell-Dubilier Marketing Inc, classified under FSC 5910 (No Item Name Available). Status: active.

What are the part numbers for NSN 5910-00-191-5778?

NSN 5910-00-191-5778 has 4 cross-referenced part numbers: CM20D521F (Eaton Corp Electronic Instrumentation Div Los Angeles Plant), 10328 (Eaton Corp Electronic Instrumentation Div Los Angeles Plant), CM20D521F (Electro Motive Corp Subsidiary of International Electronics Corp), KR5D521F (Cornell-Dubilier Marketing Inc).

What NSN replaces 5910-00-191-5778?

There are 12 known substitutes for 5910-00-191-5778: 2540-00-102-0150, 4320-00-218-3924, 5310-00-225-6993 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of KR5D521F?

Key specifications for KR5D521F: Dissipation Factor at Reference Temp in Percent: 0.1000; Body Width: 0.199 INCHES NOMINAL IN; Temp Coefficient of Capacitance Range Per Section in Ppm Per Deg Celsius: -100.0 TO 100.0 SINGLE SECTION; Terminal Diameter: 0.032 INCHES NOMINAL IN. 19 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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