PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7173Transistor

Finnigan Corporation · NSN 5961-00-087-4935 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-087-4935 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-087-4935. Primary manufacturer part number: 7173.
Features
  • Transistor — FSC 5961
  • Thread Series Designator: UNFUNF
  • Current Rating Per Characteristic: 1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Mounting Facility Quantity: 11
  • Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS JUNCTION100.0 CELSIUS JUNCTION DEGC
  • Mounting Method: THREADED STUD(S)
  • Voltage Rating in Volts Per Characteristic: 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 12.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN12.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Overall Diameter: 0.359 INCHES NOMINAL0.359 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-087-4935, 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 Finnigan Corporation. Government technical data includes 11 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-087-4935
Primary Part Number7173
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerFinnigan Corporation
StatusACTIVE
Thread Series DesignatorUNFUNF
Current Rating Per Characteristic1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC
Mounting Facility Quantity11
Maximum Operating Temp Per Measurement Point100.0 CELSIUS JUNCTION100.0 CELSIUS JUNCTION DEGC
Mounting MethodTHREADED STUD(S)
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 40.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 20.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 12.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN12.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Overall Diameter0.359 INCHES NOMINAL0.359 INCHES NOMINAL IN
Nominal Thread Size0.190 INCHES0.190 INCHES IN
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION300.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Terminal Type and Quantity3 UNINSULATED WIRE LEAD3 UNINSULATED WIRE LEAD
Semiconductor MaterialGERMANIUMGERMANIUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
6920-00-076-0465 INTERCHANGEABLE
Shaft Assembly,drum
3110-00-120-33100R142212 INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
5950-00-156-6345 INTERCHANGEABLE
Coil,electrical
3610-00-301-50707173 INTERCHANGEABLE
Wedge,driving Bar
Stanley Bostitch Inc Sub of the Stanley Works Corp
5940-00-941-49937-173 INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
5305-01-143-7510LP867 INTERCHANGEABLE
Screw Assortment
Lawson Products, Inc.
5955-01-342-3462277-0726 INTERCHANGEABLE
Oscillator,noncrystal Controlled
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6685-01-362-4269K4515N18160 INTERCHANGEABLE
Gage,pressure,dial Indicating
Parker-Hannifin Corporation Dba Pneumatic North America Div Pneumatics North America
3010-01-466-2951717-3 INTERCHANGEABLE
Coupling,tool End
Goodway Technologies Corporation Dba Goodway Technologies Corp
5340-01-516-88757173 INTERCHANGEABLE
Bracket,double Angle
Silver Eagle Manufacturing Co
Cross-Reference Index
Part NumberManufacturer
7173 Bae Systems Information & Electronic Systems Integration Inc. (USA)
7173 PRIMARY Finnigan Corporation (USA)
Related Parts
6920-00-076-0465INTERCHANGEABLE
SHAFT ASSEMBLY,DRUM
3110-00-120-3310INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
0R142212
5950-00-156-6345INTERCHANGEABLE
COIL,ELECTRICAL
3610-00-301-5070INTERCHANGEABLE
WEDGE,DRIVING BAR
7173
5940-00-941-4993INTERCHANGEABLE
TERMINAL BOARD
7-173
5305-01-143-7510INTERCHANGEABLE
SCREW ASSORTMENT
LP867
5955-01-342-3462INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
277-0726
6685-01-362-4269INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
K4515N18160
3010-01-466-2951INTERCHANGEABLE
COUPLING,TOOL END
717-3
5340-01-516-8875INTERCHANGEABLE
BRACKET,DOUBLE ANGLE
7173
5930-01-658-0365INTERCHANGEABLE
GUARD,SWITCH
7173

Frequently Asked Questions

What is NSN 5961-00-087-4935?

NSN 5961-00-087-4935 is a Transistor, manufactured by Finnigan Corporation, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-087-4935?

NSN 5961-00-087-4935 has 2 cross-referenced part numbers: 7173 (Bae Systems Information & Electronic Systems Integration Inc.), 7173 (Finnigan Corporation).

What NSN replaces 5961-00-087-4935?

There are 11 known substitutes for 5961-00-087-4935: 6920-00-076-0465, 3110-00-120-3310, 5950-00-156-6345 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7173?

Key specifications for 7173: Thread Series Designator: UNFUNF; Current Rating Per Characteristic: 1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC1.00 AMPERES MAXIMUM COLLECTOR CURRENT, DC; Mounting Facility Quantity: 11; Maximum Operating Temp Per Measurement Point: 100.0 CELSIUS JUNCTION100.0 CELSIUS JUNCTION DEGC. 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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