PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4LC12Circuit Card Assembly

Dynalec Corporation · NSN 5998-01-230-8000 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-230-8000 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-230-8000. Primary manufacturer part number: 4LC12.
Features
  • Circuit Card Assembly — FSC 5998
  • 4 verified cross-references
  • Primary manufacturer: Dynalec Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-230-8000, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Dynalec Corporation. This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5998-01-230-8000
Primary Part Number4LC12
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerDynalec Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality Code00
Unit of IssueEA
SMR CodeJH
Weight1.0000 lbs
Cube0.1389 cu ft
Verified Substitutes 5
6680-00-099-5661D421REVH INTERCHANGEABLE
Gage,liquid Quantity,float Type
Hersey Measurement Co Div of Miller Industries Inc
5330-00-154-4967 INTERCHANGEABLE
Seal,plain Encased
9150-00-261-8295D-421 INTERCHANGEABLE
Grease,plug Valve
Flowserve Us Inc. Dba Flowserve Div Flow Control - Oil and Gas Sector
5340-00-367-0908D42-1 INTERCHANGEABLE
Strap,retaining
Western Sky Industries Inc Dba Electromech Techologies
2920-00-631-5694 INTERCHANGEABLE
Starter,engine,electrical
Cross-Reference Index
Part NumberManufacturer
4LC12 The Electric Tachometer Corp. (USA)
D421 Dynalec Corporation (USA)
D421- The Electric Tachometer Corp. (USA)
4LC12 PRIMARY Dynalec Corporation (USA)
Related Parts
6680-00-099-5661INTERCHANGEABLE
GAGE,LIQUID QUANTITY,FLOAT TYPE
D421REVH
5330-00-154-4967INTERCHANGEABLE
SEAL,PLAIN ENCASED
9150-00-261-8295INTERCHANGEABLE
GREASE,PLUG VALVE
D-421
5340-00-367-0908INTERCHANGEABLE
STRAP,RETAINING
D42-1
2920-00-631-5694INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL

Frequently Asked Questions

What is NSN 5998-01-230-8000?

NSN 5998-01-230-8000 is a Circuit Card Assembly, manufactured by Dynalec Corporation, classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-230-8000?

NSN 5998-01-230-8000 has 4 cross-referenced part numbers: 4LC12 (The Electric Tachometer Corp.), D421 (Dynalec Corporation), D421- (The Electric Tachometer Corp.), 4LC12 (Dynalec Corporation).

What NSN replaces 5998-01-230-8000?

There are 5 known substitutes for 5998-01-230-8000: 6680-00-099-5661, 5330-00-154-4967, 9150-00-261-8295 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4LC12?

Key specifications for 4LC12: Special Features: PRINTED WIRING BOARD 1; RESISTOR 2; CAPACITOR 3; DIODE 2; MICROCIRCUIT 2; Special Features: PRINTED WIRING BOARD 1; RESISTOR 2; CAPACITOR 3; DIODE 2; MICROCIRCUIT 2. 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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