PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103120Circuit Card Assembly

B.c. Systems Inc. Dba Bc Systems Inc · NSN 5998-00-140-1780 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-140-1780 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-140-1780. Primary manufacturer part number: 103120.
Features
  • Circuit Card Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: B.c. Systems Inc. Dba Bc Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-00-140-1780, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is B.c. Systems Inc. Dba Bc Systems Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-00-140-1780
Primary Part Number103120
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerB.c. Systems Inc. Dba Bc Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6145-00-061-2453 (1181/20C)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 9
6145-00-061-24531181/20C SUCCESSOR
Cable,special Purpose,electrical
Belden, Inc.
5975-00-074-2072MS3367-1-9 INTERCHANGEABLE
Strap,tie Down,electrical Compon
Sae International Dba Sae International
5330-00-358-9808 INTERCHANGEABLE
Gasket
5935-00-686-3409357-9398-000 INTERCHANGEABLE
Connector,receptacle,electrical
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5310-00-906-8938103120 INTERCHANGEABLE
Push on Nut
Lucent Technologies Inc Corporate Headquarters
5950-00-971-5661103120 INTERCHANGEABLE
Coil,radio Frequency
L3harris Technologies, Inc Div Space & Airborne Systems
5961-00-984-2750 INTERCHANGEABLE
Transistor
5970-01-049-0963 INTERCHANGEABLE
Insulator,bushing
6150-01-392-7667103-1-20 INTERCHANGEABLE
Bus,conductor
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
103120 PRIMARY B.c. Systems Inc. Dba Bc Systems Inc (USA)
103120 Tempo Instrument Inc Defense Electronics Div (USA)
Related Parts
SUCCESSOR 6145-00-061-2453 Cable,special Purpose,electrical · 1181/20C
5975-00-074-2072INTERCHANGEABLE
STRAP,TIE DOWN,ELECTRICAL COMPON
MS3367-1-9
5330-00-358-9808INTERCHANGEABLE
GASKET
5935-00-686-3409INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
357-9398-000
5310-00-906-8938INTERCHANGEABLE
PUSH ON NUT
103120
5950-00-971-5661INTERCHANGEABLE
COIL,RADIO FREQUENCY
103120
5961-00-984-2750INTERCHANGEABLE
TRANSISTOR
5970-01-049-0963INTERCHANGEABLE
INSULATOR,BUSHING
6150-01-392-7667INTERCHANGEABLE
BUS,CONDUCTOR
103-1-20

Frequently Asked Questions

What is NSN 5998-00-140-1780?

NSN 5998-00-140-1780 is a Circuit Card Assembly, manufactured by B.c. Systems Inc. Dba Bc Systems Inc, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-00-140-1780?

NSN 5998-00-140-1780 has 2 cross-referenced part numbers: 103120 (B.c. Systems Inc. Dba Bc Systems Inc), 103120 (Tempo Instrument Inc Defense Electronics Div).

What NSN replaces 5998-00-140-1780?

There are 9 known substitutes for 5998-00-140-1780: 6145-00-061-2453, 5975-00-074-2072, 5330-00-358-9808 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103120?

Key specifications for 103120: Special Features: CAPACITOR 9,DIODE 11,PRINTED WIRING BOARD 1,RESISTOR 26,TRANSISTOR 7; Special Features: CAPACITOR 9,DIODE 11,PRINTED WIRING BOARD 1,RESISTOR 26,TRANSISTOR 7. 2 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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