PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1855-0138Transistor

Br Communications (inc) · NSN 5961-01-181-1198 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-181-1198 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-181-1198. Primary manufacturer part number: 1855-0138.
Features
  • Transistor — FSC 5961
  • Mounting Method: TERMINAL
  • Internal Configuration: FIELD EFFECT
  • Semiconductor Material: SILICON
  • 2 verified cross-references
  • Primary manufacturer: Br Communications (inc)
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-181-1198, 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 Br Communications (inc). Government technical data includes 3 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-181-1198
Primary Part Number1855-0138
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerBr Communications (inc)
StatusACTIVE
Mounting MethodTERMINAL
Internal ConfigurationFIELD EFFECT
Semiconductor MaterialSILICON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-00-179-3776 INTERCHANGEABLE
Transistor
5961-00-256-1223Q107-1 INTERCHANGEABLE
Transistor
Cae Usa Inc.
Cross-Reference Index
Part NumberManufacturer
1855-0138 PRIMARY Br Communications (inc) (USA)
3N138 Texas Instruments Incorporated (USA)
Related Parts
5961-00-179-3776INTERCHANGEABLE
TRANSISTOR
5961-00-256-1223INTERCHANGEABLE
TRANSISTOR
Q107-1

Frequently Asked Questions

What is NSN 5961-01-181-1198?

NSN 5961-01-181-1198 is a Transistor, manufactured by Br Communications (inc), classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-181-1198?

NSN 5961-01-181-1198 has 2 cross-referenced part numbers: 1855-0138 (Br Communications (inc)), 3N138 (Texas Instruments Incorporated).

What NSN replaces 5961-01-181-1198?

There are 2 known substitutes for 5961-01-181-1198: 5961-00-179-3776, 5961-00-256-1223. Verify interchangeability with system specifications before substitution.

What are the specifications of 1855-0138?

Key specifications for 1855-0138: Mounting Method: TERMINAL; Internal Configuration: FIELD EFFECT; Semiconductor Material: SILICON. 3 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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