PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21952Transistor

Smiths Aerospace, Inc., Electronic Systems-Grand Rapids · NSN 5961-01-167-5574 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-167-5574 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-167-5574. Primary manufacturer part number: 21952.
Features
  • Transistor — FSC 5961
  • Power Rating Per Characteristic: 500.0 MILLIWATTS NOMINAL TOTAL POWER DISSIPATION
  • Internal Configuration: JUNCTION CONTACT
  • Current Rating Per Characteristic: 800.00 MILLIAMPERES NOMINAL COLLECTOR CURRENT, DC
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Special Test Features: TESTED PER BASE TEN SYSTEMS DWG 21952
  • Voltage Rating in Volts Per Characteristic: 75.0 NOMINAL COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN
  • Semiconductor Material: SILICON
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-167-5574, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Smiths Aerospace, Inc., Electronic Systems-Grand Rapids. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5961-01-167-5574
Primary Part Number21952
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerSmiths Aerospace, Inc., Electronic Systems-Grand Rapids
StatusACTIVE
Power Rating Per Characteristic500.0 MILLIWATTS NOMINAL TOTAL POWER DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Current Rating Per Characteristic800.00 MILLIAMPERES NOMINAL COLLECTOR CURRENT, DC
Terminal Length0.500 INCHES MINIMUM IN
Special Test FeaturesTESTED PER BASE TEN SYSTEMS DWG 21952
Voltage Rating in Volts Per Characteristic75.0 NOMINAL COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN
Semiconductor MaterialSILICON
Overall Diameter0.230 INCHES MAXIMUM IN
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Mounting MethodTERMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5965-00-058-1288SM-C-430274 INTERCHANGEABLE
Headband,headset
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5930-00-478-955921952 INTERCHANGEABLE
Switch,electrical
Mason Electric Co. Dba Mason Controls
5930-00-823-2115 INTERCHANGEABLE
Switch,push
5420-00-877-8684 INTERCHANGEABLE
Superstructure,end Bay
5345-01-400-359905114-88702 INTERCHANGEABLE
Disk,abrasive
3m Company
Cross-Reference Index
Part NumberManufacturer
21952 PRIMARY Smiths Aerospace, Inc., Electronic Systems-Grand Rapids (USA)
Related Parts
5965-00-058-1288INTERCHANGEABLE
HEADBAND,HEADSET
SM-C-430274
5930-00-478-9559INTERCHANGEABLE
SWITCH,ELECTRICAL
21952
5930-00-823-2115INTERCHANGEABLE
SWITCH,PUSH
5420-00-877-8684INTERCHANGEABLE
SUPERSTRUCTURE,END BAY
5345-01-400-3599INTERCHANGEABLE
DISK,ABRASIVE
05114-88702

Frequently Asked Questions

What is NSN 5961-01-167-5574?

NSN 5961-01-167-5574 is a Transistor, manufactured by Smiths Aerospace, Inc., Electronic Systems-Grand Rapids, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-167-5574?

NSN 5961-01-167-5574 has 1 cross-referenced part number: 21952 (Smiths Aerospace, Inc., Electronic Systems-Grand Rapids).

What NSN replaces 5961-01-167-5574?

There are 5 known substitutes for 5961-01-167-5574: 5965-00-058-1288, 5930-00-478-9559, 5930-00-823-2115 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21952?

Key specifications for 21952: Power Rating Per Characteristic: 500.0 MILLIWATTS NOMINAL TOTAL POWER DISSIPATION; Internal Configuration: JUNCTION CONTACT; Current Rating Per Characteristic: 800.00 MILLIAMPERES NOMINAL COLLECTOR CURRENT, DC; Special Features: JUNCTION PATTERN ARRANGEMENT: NPN. 12 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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