PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SM-B-781408Capacitor,variable,air Dielectri

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · NSN 5910-01-019-3858 · FSC 5910 · No Item Name Available
Verified by PartsTable
NSN 5910-01-019-3858 — this item is cataloged by the U.S. Government under National Stock Number 5910-01-019-3858. Primary manufacturer part number: SM-B-781408.
Features
  • Capacitor,variable,air Dielectri — FSC 5910
  • Mounting Facility Type and Quantity: 2 TERMINAL
  • Tuning Characteristic: STRAIGHT LINE CAPACITY SINGLE SECTION
  • Adjustment Device Drive Type and Quantity: 1 SLOTTED SCREW
  • Terminal Type and Quantity: 2 PRINTED CIRCUIT
  • Inclosure Type: HERMETICALLY SEALED
  • Tolerance of Temp Coefficient in Ppm Per Deg Celsius: -50.0 TO 50.0 SINGLE SECTION
  • Capacitance Range in Picofarads: +1.0 TO 14.0 SINGLE SECTION
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Capacitor,variable,air Dielectri, cataloged under National Stock Number 5910-01-019-3858, 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 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5910-01-019-3858
Primary Part NumberSM-B-781408
Item NameCapacitor,variable,air Dielectri
FSC / FSG5910 / 59 — No Item Name Available
ManufacturerUs Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
StatusCANCELLED
Mounting Facility Type and Quantity2 TERMINAL
Tuning CharacteristicSTRAIGHT LINE CAPACITY SINGLE SECTION
Adjustment Device Drive Type and Quantity1 SLOTTED SCREW
Terminal Type and Quantity2 PRINTED CIRCUIT
Inclosure TypeHERMETICALLY SEALED
Tolerance of Temp Coefficient in Ppm Per Deg Celsius-50.0 TO 50.0 SINGLE SECTION
Capacitance Range in Picofarads+1.0 TO 14.0 SINGLE SECTION
Nonderated Operating Temp-65.0 CELSIUS MINIMUM AND 125.0 CELSIUS MAXIMUM DEGC
Quality Factor at 25 Deg Celsius1500.0
Insulation DC Resistance at 25 Deg Celsius1000.0 GIGOHMS
Body Length0.297 INCHES NOMINAL IN
Body StylePISTON
Nonderated Voltage Rating and Type250.0 DC CONTINUOUS SINGLE SECTION
Temp Coefficient of Capacitance in Ppm Per Deg Celsius0.0 SINGLE SECTION
Overall Diameter0.281 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-034-76325120-00-034-7632 INTERCHANGEABLE
Spacer,mechanical Puller
General Services Administration Federal Supply Service
6135-00-120-1004 INTERCHANGEABLE
Battery,nonrechargeable
5330-00-285-4028 INTERCHANGEABLE
Seal,plain Encased
3030-00-294-9869 INTERCHANGEABLE
Belt,v
6145-00-360-776013220E3406 INTERCHANGEABLE
Wire,magnet
Cecom Lr Center
5985-00-768-40698053A INTERCHANGEABLE
Dummy Load,electrical
Bird Electronic Corporation Div Bird Electronic Corp
5330-00-818-05247748764 INTERCHANGEABLE
Seal,plain
Army, United States Department of the Dba Rock Island Arsenal Jmtc
6625-01-039-5349 INTERCHANGEABLE
Hybrid Junction
5910-01-219-9704 INTERCHANGEABLE
Capacitor,variable,air Dielectri
5305-01-437-6344DIN912M6X40-8.8B4N INTERCHANGEABLE
Screw,cap,socket Head
Bossard Intl Inc
Cross-Reference Index
Part NumberManufacturer
013502005 Servo Corporation of America (USA)
2888317-3 Naval Sea Systems Command (USA)
8053 Johanson Dielectrics, Inc (USA)
77C715563P001 Lockheed Martin Corporation Div Rms (USA)
PC19L100 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JMC8053 Knowles Cazenovia, Inc. Div Johanson Manufacturing (USA)
6010258-007 Bae Systems Information and Electronic Systems Integration Inc. Div Bae Systems Information & Electronic Systems Integration Inc (USA)
SM-B-781408 PRIMARY Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
8053 Knowles Cazenovia, Inc. Div Johanson Manufacturing (USA)
Related Parts
5120-00-034-7632INTERCHANGEABLE
SPACER,MECHANICAL PULLER
5120-00-034-7632
6135-00-120-1004INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
5330-00-285-4028INTERCHANGEABLE
SEAL,PLAIN ENCASED
3030-00-294-9869INTERCHANGEABLE
BELT,V
6145-00-360-7760INTERCHANGEABLE
WIRE,MAGNET
13220E3406
5985-00-768-4069INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
8053A
5330-00-818-0524INTERCHANGEABLE
SEAL,PLAIN
7748764
6625-01-039-5349INTERCHANGEABLE
HYBRID JUNCTION
5910-01-219-9704INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
5305-01-437-6344INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
DIN912M6X40-8.8B4N
5340-01-446-5365INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
7657-2-2 ITEM 8
6110-01-581-3590INTERCHANGEABLE
PANEL,CONTROL,ELECTRICAL-ELECTRO

Frequently Asked Questions

What is NSN 5910-01-019-3858?

NSN 5910-01-019-3858 is a Capacitor,variable,air Dielectri, manufactured by Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir, classified under FSC 5910 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5910-01-019-3858?

NSN 5910-01-019-3858 has 9 cross-referenced part numbers: 013502005 (Servo Corporation of America), 2888317-3 (Naval Sea Systems Command), 8053 (Johanson Dielectrics, Inc), 77C715563P001 (Lockheed Martin Corporation Div Rms), PC19L100 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 5910-01-019-3858?

There are 12 known substitutes for 5910-01-019-3858: 5120-00-034-7632, 6135-00-120-1004, 5330-00-285-4028 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of SM-B-781408?

Key specifications for SM-B-781408: Overall Length: 0.547 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 2 TERMINAL; Tuning Characteristic: STRAIGHT LINE CAPACITY SINGLE SECTION; Adjustment Device Drive Type and Quantity: 1 SLOTTED SCREW. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5910-01-019-3858 still in active supply?

NSN 5910-01-019-3858 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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