PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

OM-354 FIG 7-5 ITEM NO 20Circuit Card Assembly

Miller Electric Mfg. Co. · NSN 5998-01-435-8121 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-435-8121 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-435-8121. Primary manufacturer part number: OM-354 FIG 7-5 ITEM NO 20.
Features
  • Circuit Card Assembly — FSC 5998
  • 3 verified cross-references
  • Primary manufacturer: Miller Electric Mfg. Co.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Card Assembly, cataloged under National Stock Number 5998-01-435-8121, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Miller Electric Mfg. Co.. This item has 3 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. Unit of issue: EA.

Catalog Facts
Item NameCircuit Card Assembly
FSC / FSG5998 — Circuit Card Assembly (FSG 59)
ManufacturersMiller Electric Mfg. Co. (CAGE 40608); Miller Electric Mfg. Llc (CAGE 3BH04)
Technical Specifications
ParameterValue
NSN5998-01-435-8121
Primary Part NumberOM-354 FIG 7-5 ITEM NO 20
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerMiller Electric Mfg. Co.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeYN
Weight1.0000 lbs
Cube0.0109 cu ft
Verified Substitutes 2
5841-00-618-4756139969 INTERCHANGEABLE
Receiver-Transmitter Subassembly
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
4730-00-802-5653139969 INTERCHANGEABLE
Nipple,pipe
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
OM-354 FIG 7-5 ITEM NO 20 Miller Electric Mfg. Co. (USA)
139969 Miller Electric Mfg. Llc (USA)
139969 Miller Electric Mfg. Co. (USA)
Related Parts
5841-00-618-4756INTERCHANGEABLE
RECEIVER-TRANSMITTER SUBASSEMBLY
139969
4730-00-802-5653INTERCHANGEABLE
NIPPLE,PIPE
139969

Frequently Asked Questions

What is NSN 5998-01-435-8121?

NSN 5998-01-435-8121 is a Circuit Card Assembly, manufactured by Miller Electric Mfg. Co., classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-435-8121?

NSN 5998-01-435-8121 has 3 cross-referenced part numbers: OM-354 FIG 7-5 ITEM NO 20 (Miller Electric Mfg. Co.), 139969 (Miller Electric Mfg. Llc), 139969 (Miller Electric Mfg. Co.).

What NSN replaces 5998-01-435-8121?

There are 2 known substitutes for 5998-01-435-8121: 5841-00-618-4756, 4730-00-802-5653. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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