PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

EM-266-11Circuit Card Assembly

L3 Technologies, Inc. · NSN 5998-01-554-1068 · FSC 5998 · Circuit Card Assembly
Verified by PartsTable
NSN 5998-01-554-1068 — this item is cataloged by the U.S. Government under National Stock Number 5998-01-554-1068. Primary manufacturer part number: EM-266-11.
Features
  • Circuit Card Assembly — FSC 5998
  • 2 verified cross-references
  • Primary manufacturer: L3 Technologies, 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 5998-01-554-1068, is classified within Federal Supply Class 5998 (Circuit Card Assembly) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3 Technologies, Inc.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5998-01-554-1068
Primary Part NumberEM-266-11
Item NameCircuit Card Assembly
FSC / FSG5998 / 59 — Circuit Card Assembly
ManufacturerL3 Technologies, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5998-01-356-4140 (90320-3)
HAZMATNo
Verified Substitutes 6
5998-01-356-414090320-3 SUCCESSOR
Retainer-Ejector,electrical Card
Hamilton Sundstrand Corporation Dba Collins Aerospace
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
3110-00-884-812726118-26282D INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
3110-01-372-778523506244 INTERCHANGEABLE
Ball Assembly
Rolls-Royce Solutions America Inc
3431-01-473-0527903 203 INTERCHANGEABLE
Welding Machine,arc
Miller Electric Mfg. Llc
3110-01-620-8153903203 INTERCHANGEABLE
Bearing,roller,tapered
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
Cross-Reference Index
Part NumberManufacturer
EM-266-11 PRIMARY L3 Technologies, Inc. (USA)
90-320/3 L3 Technologies, Inc. (USA)
Related Parts
SUCCESSOR 5998-01-356-4140 Retainer-Ejector,electrical Card · 90320-3
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
3110-00-884-8127INTERCHANGEABLE
BEARING,ROLLER,TAPERED
26118-26282D
3110-01-372-7785INTERCHANGEABLE
BALL ASSEMBLY
23506244
3431-01-473-0527INTERCHANGEABLE
WELDING MACHINE,ARC
903 203
3110-01-620-8153INTERCHANGEABLE
BEARING,ROLLER,TAPERED
903203

Frequently Asked Questions

What is NSN 5998-01-554-1068?

NSN 5998-01-554-1068 is a Circuit Card Assembly, manufactured by L3 Technologies, Inc., classified under FSC 5998 (Circuit Card Assembly). Status: active.

What are the part numbers for NSN 5998-01-554-1068?

NSN 5998-01-554-1068 has 2 cross-referenced part numbers: EM-266-11 (L3 Technologies, Inc.), 90-320/3 (L3 Technologies, Inc.).

What NSN replaces 5998-01-554-1068?

There are 6 known substitutes for 5998-01-554-1068: 5998-01-356-4140, 3110-00-516-5289, 3110-00-884-8127 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of EM-266-11?

Key specifications for EM-266-11: Part Name Assigned by Controlling Agency: INTERFACE BOARD; Part Name Assigned by Controlling Agency: INTERFACE BOARD. 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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