PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

V1251Capacitor,variable,glass Dielect

Voltronics Corp · NSN 5910-00-451-3189 · FSC 5910 · No Item Name Available
Verified by PartsTable
NSN 5910-00-451-3189 — this item is cataloged by the U.S. Government under National Stock Number 5910-00-451-3189. Primary manufacturer part number: V1251.
Features
  • Capacitor,variable,glass Dielect — FSC 5910
  • Adjustment Device Drive Type and Quantity: 1 SLOTTED SCREW
  • Mounting Facility Type and Quantity: 2 TERMINAL
  • Temp Coefficient of Capacitance Range in Ppm Per Deg Celsius: -50.0 TO 50.0 SINGLE SECTION
  • Insulation DC Resistance at 25 Deg Celsius: 1000.0 GIGOHMS
  • Inclosure Type: ENCAPSULATED
  • Terminal Type and Quantity: 2 WIRE LEAD
  • Body Style: PISTON
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Capacitor,variable,glass Dielect, cataloged under National Stock Number 5910-00-451-3189, 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 Voltronics Corp. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5910-00-451-3189
Primary Part NumberV1251
Item NameCapacitor,variable,glass Dielect
FSC / FSG5910 / 59 — No Item Name Available
ManufacturerVoltronics Corp
StatusACTIVE
Adjustment Device Drive Type and Quantity1 SLOTTED SCREW
Mounting Facility Type and Quantity2 TERMINAL
Temp Coefficient of Capacitance Range in Ppm Per Deg Celsius-50.0 TO 50.0 SINGLE SECTION
Insulation DC Resistance at 25 Deg Celsius1000.0 GIGOHMS
Inclosure TypeENCAPSULATED
Terminal Type and Quantity2 WIRE LEAD
Body StylePISTON
Overall Diameter0.312 INCHES NOMINAL IN
Terminal Diameter0.016 INCHES NOMINAL IN
Terminal Length1.000 INCHES MINIMUM IN
Body Length0.312 INCHES NOMINAL IN
Capacitance Range in Picofarads+0.8 TO 4.5 SINGLE SECTION
Terminal LocationCIRCUMFERENCE 180 DEGREES APART ON END OPPOSITE ADJUSTMENT CONTROL PERPENDICULAR
Quality Factor at 25 Deg Celsius500.0
Nonderated Operating Temp-55.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
Nonderated Voltage Rating and Type750.0 DC CONTINUOUS OR 1500.0 DC DIELECTRIC WITHSTANDING SINGLE SECTION
Center to Center Distance Between Mounting Facilities Parallel to Diameter0.275 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2805-00-354-198843018A INTERCHANGEABLE
Valve,poppet,engine
Brinkley Technology Group Llc Dba Hercules Manufacturing
Cross-Reference Index
Part NumberManufacturer
V1251 Voltronics Corp (USA)
556146-388 Eaton Corp Electronic Instrumentation Div Los Angeles Plant (USA)
Related Parts
2805-00-354-1988INTERCHANGEABLE
VALVE,POPPET,ENGINE
43018A

Frequently Asked Questions

What is NSN 5910-00-451-3189?

NSN 5910-00-451-3189 is a Capacitor,variable,glass Dielect, manufactured by Voltronics Corp, classified under FSC 5910 (No Item Name Available). Status: active.

What are the part numbers for NSN 5910-00-451-3189?

NSN 5910-00-451-3189 has 2 cross-referenced part numbers: V1251 (Voltronics Corp), 556146-388 (Eaton Corp Electronic Instrumentation Div Los Angeles Plant).

What NSN replaces 5910-00-451-3189?

There is 1 known substitute for 5910-00-451-3189: 2805-00-354-1988. Verify interchangeability with system specifications before substitution.

What are the specifications of V1251?

Key specifications for V1251: Adjustment Device Drive Type and Quantity: 1 SLOTTED SCREW; Mounting Facility Type and Quantity: 2 TERMINAL; Temp Coefficient of Capacitance Range in Ppm Per Deg Celsius: -50.0 TO 50.0 SINGLE SECTION; Insulation DC Resistance at 25 Deg Celsius: 1000.0 GIGOHMS. 18 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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