PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JMC3956Capacitor,variable,air Dielectri

Knowles Cazenovia, Inc. Div Johanson Manufacturing · NSN 5910-00-954-0519 · FSC 5910 · No Item Name Available
Verified by PartsTable
NSN 5910-00-954-0519 — this item is cataloged by the U.S. Government under National Stock Number 5910-00-954-0519. Primary manufacturer part number: JMC3956.
Features
  • Capacitor,variable,air Dielectri — FSC 5910
  • Overall Diameter: 0.281 INCHES NOMINAL IN
  • Inclosure Type: ENCASED
  • Temp Coefficient of Capacitance in Ppm Per Deg Celsius: 0.0 SINGLE SECTION
  • Nonderated Voltage Rating and Type: 250.0 DC CONTINUOUS SINGLE SECTION
  • Nonderated Operating Temp: -55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
  • Terminal Diameter: 0.031 INCHES NOMINAL IN
  • Adjustment Device Drive Type and Quantity: 1 SLOTTED SCREW
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Capacitor,variable,air Dielectri, cataloged under National Stock Number 5910-00-954-0519, 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 Knowles Cazenovia, Inc. Div Johanson Manufacturing. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5910-00-954-0519
Primary Part NumberJMC3956
Item NameCapacitor,variable,air Dielectri
FSC / FSG5910 / 59 — No Item Name Available
ManufacturerKnowles Cazenovia, Inc. Div Johanson Manufacturing
StatusACTIVE
Overall Diameter0.281 INCHES NOMINAL IN
Inclosure TypeENCASED
Temp Coefficient of Capacitance in Ppm Per Deg Celsius0.0 SINGLE SECTION
Nonderated Voltage Rating and Type250.0 DC CONTINUOUS SINGLE SECTION
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
Terminal Diameter0.031 INCHES NOMINAL IN
Adjustment Device Drive Type and Quantity1 SLOTTED SCREW
Capacitance Range in Picofarads+0.8 TO 10.0 SINGLE SECTION
Mounting Facility Type and Quantity3 TERMINAL
Test Data Document00724-11-00273-001 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Tolerance of Temp Coefficient in Ppm Per Deg Celsius-20.0 TO 20.0 SINGLE SECTION
Body Length0.313 INCHES NOMINAL IN
Insulation DC Resistance at 25 Deg Celsius1000.0 GIGOHMS
Body StylePISTON
Tuning CharacteristicSTRAIGHT LINE CAPACITY SINGLE SECTION
Center to Center Distance Between Terminals Parallel to Length0.281 INCHES NOMINAL IN
Center to Center Distance Between Terminals Parallel to Diameter0.219 INCHES NOMINAL IN
Quality Factor at 25 Deg Celsius2000.0
Terminal Type and Quantity3 PRINTED CIRCUIT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5930-00-075-2334 INTERCHANGEABLE
Switch Section,rotary
5905-00-102-57113956 INTERCHANGEABLE
Resistor,fixed,wire Wound
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
3020-00-358-7204GD93C5 INTERCHANGEABLE
Gear,helical
Wisconsin Motors, Llc
4030-00-784-4524 INTERCHANGEABLE
Shackle
2530-00-933-413621531X INTERCHANGEABLE
Tie Rod End,steering
Dana Corp Spicer Transmission Div
6640-01-089-9336 INTERCHANGEABLE
Incubator,bacteriological
5340-01-163-8519395-6 INTERCHANGEABLE
Cap,protective,dust and Moisture
Niagara Plastics L.l.c.
6625-01-330-4419 INTERCHANGEABLE
Indicator,digital Display
5130-01-351-3961 INTERCHANGEABLE
Rotary Tool Kit,electric
Cross-Reference Index
Part NumberManufacturer
JMC3956 Knowles Cazenovia, Inc. Div Johanson Manufacturing (USA)
11-00273-001 Raytheon Company (USA)
3956 Knowles Cazenovia, Inc. Div Johanson Manufacturing (USA)
Related Parts
5930-00-075-2334INTERCHANGEABLE
SWITCH SECTION,ROTARY
5905-00-102-5711INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
3956
3020-00-358-7204INTERCHANGEABLE
GEAR,HELICAL
GD93C5
4030-00-784-4524INTERCHANGEABLE
SHACKLE
2530-00-933-4136INTERCHANGEABLE
TIE ROD END,STEERING
21531X
6640-01-089-9336INTERCHANGEABLE
INCUBATOR,BACTERIOLOGICAL
5340-01-163-8519INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
395-6
6625-01-330-4419INTERCHANGEABLE
INDICATOR,DIGITAL DISPLAY
5130-01-351-3961INTERCHANGEABLE
ROTARY TOOL KIT,ELECTRIC

Frequently Asked Questions

What is NSN 5910-00-954-0519?

NSN 5910-00-954-0519 is a Capacitor,variable,air Dielectri, manufactured by Knowles Cazenovia, Inc. Div Johanson Manufacturing, classified under FSC 5910 (No Item Name Available). Status: active.

What are the part numbers for NSN 5910-00-954-0519?

NSN 5910-00-954-0519 has 3 cross-referenced part numbers: JMC3956 (Knowles Cazenovia, Inc. Div Johanson Manufacturing), 11-00273-001 (Raytheon Company), 3956 (Knowles Cazenovia, Inc. Div Johanson Manufacturing).

What NSN replaces 5910-00-954-0519?

There are 9 known substitutes for 5910-00-954-0519: 5930-00-075-2334, 5905-00-102-5711, 3020-00-358-7204 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of JMC3956?

Key specifications for JMC3956: Overall Diameter: 0.281 INCHES NOMINAL IN; Inclosure Type: ENCASED; Temp Coefficient of Capacitance in Ppm Per Deg Celsius: 0.0 SINGLE SECTION; Nonderated Voltage Rating and Type: 250.0 DC CONTINUOUS SINGLE SECTION. 20 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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