PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103121Circuit Card Assembly

B.c. Systems Inc. Dba Bc Systems Inc · NSN 5998-00-492-1459 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-00-492-1459 — this item is cataloged by the U.S. Government under National Stock Number 5998-00-492-1459. Primary manufacturer part number: 103121.
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 5998-00-492-1459, 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-00-492-1459
Primary Part Number103121
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerB.c. Systems Inc. Dba Bc Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.1800 lbs
Cube0.0180 cu ft
Verified Substitutes 3
5330-00-081-5383103121 INTERCHANGEABLE
Gasket
L3harris Technologies, Inc Div Space & Airborne Systems
5330-00-358-9809376MAA1 INTERCHANGEABLE
Gasket
Linde Material Handling North America Corporation
6620-01-431-0706130120 INTERCHANGEABLE
Gage,pressure,dial Indicating
Maxima Technologies & Systems Llc
Cross-Reference Index
Part NumberManufacturer
103121 PRIMARY B.c. Systems Inc. Dba Bc Systems Inc (USA)
103121 Tempo Instrument Inc Defense Electronics Div (USA)
Related Parts
5330-00-081-5383INTERCHANGEABLE
GASKET
103121
5330-00-358-9809INTERCHANGEABLE
GASKET
376MAA1
6620-01-431-0706INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
130120

Frequently Asked Questions

What is NSN 5998-00-492-1459?

NSN 5998-00-492-1459 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 5998-00-492-1459?

NSN 5998-00-492-1459 has 2 cross-referenced part numbers: 103121 (B.c. Systems Inc. Dba Bc Systems Inc), 103121 (Tempo Instrument Inc Defense Electronics Div).

What NSN replaces 5998-00-492-1459?

There are 3 known substitutes for 5998-00-492-1459: 5330-00-081-5383, 5330-00-358-9809, 6620-01-431-0706. Verify interchangeability with system specifications before substitution.

What are the specifications of 103121?

Key specifications for 103121: End Item Identification: 5821-00-514-7856,GENERATOR,TONE; Special Features: CAPACITOR 3,INDUCTOR 9,OSCILLATOR 1,PRINTED WIRING BOARD 1,RESISTOR 5,SEMICONDUCTOR DEVICE DIODE 1; Part Name Assigned by Controlling Agency: FSC APPLICATION DATA: RADIO AND TELEVISION COMMUNICATIONS EQUIPMENT,AIRBORNE; End Item Identification: 5821-00-514-7856,GENERATOR,TONE. 6 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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