PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B172Y26Capacitor,fixed,plastic Dielectr

Aerovox Corp. · NSN 5910-00-172-3378 · FSC 5910 · No Item Name Available
Verified by PartsTable
NSN 5910-00-172-3378 — this item is cataloged by the U.S. Government under National Stock Number 5910-00-172-3378. Primary manufacturer part number: B172Y26.
Features
  • Capacitor,fixed,plastic Dielectr — FSC 5910
  • Center to Center Distance Between Terminals Parallel to Length: 2.000 INCHES NOMINAL IN
  • Capacitance Value Per Section: 1.000 MICROFARADS SINGLE SECTION
  • Schematic Diagram Designator: NO COMMON OR GROUNDED ELECTRODE(S)
  • Nonderated Continuous Voltage Rating and Type Per Section: 7500.0 DC SINGLE SECTION
  • Test Data Document: 81349-MIL-C-19978 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Terminal Type and Quantity: 2 THREADED STUD
  • Features Provided: HERMETICALLY SEALED CASE
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Capacitor,fixed,plastic Dielectr, cataloged under National Stock Number 5910-00-172-3378, 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 Aerovox Corp.. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5910-00-172-3378
Primary Part NumberB172Y26
Item NameCapacitor,fixed,plastic Dielectr
FSC / FSG5910 / 59 — No Item Name Available
ManufacturerAerovox Corp.
StatusACTIVE
Center to Center Distance Between Terminals Parallel to Length2.000 INCHES NOMINAL IN
Capacitance Value Per Section1.000 MICROFARADS SINGLE SECTION
Schematic Diagram DesignatorNO COMMON OR GROUNDED ELECTRODE(S)
Nonderated Continuous Voltage Rating and Type Per Section7500.0 DC SINGLE SECTION
Test Data Document81349-MIL-C-19978 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Terminal Type and Quantity2 THREADED STUD
Features ProvidedHERMETICALLY SEALED CASE
Body StyleW/O MTG FACILITIES, TERMINAL(S) ON ONE SURFACE
Tolerance Range Per Section-10.00 TO 10.00 PERCENT SINGLE SECTION
Body Width3.188 INCHES NOMINAL IN
Body Height5.125 INCHES NOMINAL IN
Nonderated Operating Temp-65.0 CELSIUS MINIMUM AND 85.0 CELSIUS MAXIMUM DEGC
Body Length3.750 INCHES NOMINAL IN
Reliability IndicatorNOT ESTABLISHED
Terminal Height From Body2.750 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3930-00-136-5055 INTERCHANGEABLE
Valve
2805-00-271-9054 INTERCHANGEABLE
Breather
2510-00-404-70203915 INTERCHANGEABLE
Platform,rear,frame
R and J Metal Fabricators Inc
5998-01-095-22093915 INTERCHANGEABLE
Electronic Components Assembly
Avo Multi-Amp Corp
6640-01-327-1628 INTERCHANGEABLE
Burner,gas,laboratory
Cross-Reference Index
Part NumberManufacturer
B172Y26 Aerovox Corp. (USA)
MIL-PRF-19978/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILC19978-3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
72DIERL05K3 U S Dept of Transportation Federal Aviation Administration (USA)
CQ72D1ER105K3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3915 Chicago Condenser Corp., Inc. (USA)
Related Parts
3930-00-136-5055INTERCHANGEABLE
VALVE
2805-00-271-9054INTERCHANGEABLE
BREATHER
2510-00-404-7020INTERCHANGEABLE
PLATFORM,REAR,FRAME
3915
5998-01-095-2209INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
3915
6640-01-327-1628INTERCHANGEABLE
BURNER,GAS,LABORATORY

Frequently Asked Questions

What is NSN 5910-00-172-3378?

NSN 5910-00-172-3378 is a Capacitor,fixed,plastic Dielectr, manufactured by Aerovox Corp., classified under FSC 5910 (No Item Name Available). Status: active.

What are the part numbers for NSN 5910-00-172-3378?

NSN 5910-00-172-3378 has 6 cross-referenced part numbers: B172Y26 (Aerovox Corp.), MIL-PRF-19978/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILC19978-3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 72DIERL05K3 (U S Dept of Transportation Federal Aviation Administration), CQ72D1ER105K3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5910-00-172-3378?

There are 5 known substitutes for 5910-00-172-3378: 3930-00-136-5055, 2805-00-271-9054, 2510-00-404-7020 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B172Y26?

Key specifications for B172Y26: Center to Center Distance Between Terminals Parallel to Length: 2.000 INCHES NOMINAL IN; Capacitance Value Per Section: 1.000 MICROFARADS SINGLE SECTION; Schematic Diagram Designator: NO COMMON OR GROUNDED ELECTRODE(S); Nonderated Continuous Voltage Rating and Type Per Section: 7500.0 DC SINGLE SECTION. 15 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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