PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1668Semiconductor Device Assembly

L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications · NSN 5961-00-166-0220 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-166-0220 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-166-0220. Primary manufacturer part number: 1668.
Features
  • Semiconductor Device Assembly — FSC 5961
  • Major Components: SEMICONDUCTOR DEVICE,DIODE 4;COMPONENT BOARD 1
  • 1 verified cross-reference
  • Primary manufacturer: L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Semiconductor Device Assembly, cataloged under National Stock Number 5961-00-166-0220, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-166-0220
Primary Part Number1668
Item NameSemiconductor Device Assembly
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
StatusACTIVE
Major ComponentsSEMICONDUCTOR DEVICE,DIODE 4;COMPONENT BOARD 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5905-00-106-7014 INTERCHANGEABLE
Resistor Set,matched
4820-00-528-23624200 INTERCHANGEABLE
Valve,check
Fluid Power, Inc.
5975-00-676-8392822 INTERCHANGEABLE
Disk,end Seal,electrical Conduit
Abb Installation Products Inc
4820-00-824-5274341-01 INTERCHANGEABLE
Seat,valve
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
5970-00-912-1949 INTERCHANGEABLE
Insulation Sheet,electrical
3040-00-975-9786 INTERCHANGEABLE
Shaft,straight
4730-01-007-1965 INTERCHANGEABLE
Fitting,lubrication
4330-01-210-587851668 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5975-01-325-06341668 INTERCHANGEABLE
Chase Nipple,conduit
Raco, a Division of Hubbell Incorporated(delaware)
5330-01-368-7416D2491 PIECE E INTERCHANGEABLE
Gasket
Rix Industries
Cross-Reference Index
Part NumberManufacturer
1668 PRIMARY L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
Related Parts
5905-00-106-7014INTERCHANGEABLE
RESISTOR SET,MATCHED
4820-00-528-2362INTERCHANGEABLE
VALVE,CHECK
4200
5975-00-676-8392INTERCHANGEABLE
DISK,END SEAL,ELECTRICAL CONDUIT
822
4820-00-824-5274INTERCHANGEABLE
SEAT,VALVE
341-01
5970-00-912-1949INTERCHANGEABLE
INSULATION SHEET,ELECTRICAL
3040-00-975-9786INTERCHANGEABLE
SHAFT,STRAIGHT
4730-01-007-1965INTERCHANGEABLE
FITTING,LUBRICATION
4330-01-210-5878INTERCHANGEABLE
FILTER ELEMENT,FLUID
51668
5975-01-325-0634INTERCHANGEABLE
CHASE NIPPLE,CONDUIT
1668
5330-01-368-7416INTERCHANGEABLE
GASKET
D2491 PIECE E
5940-01-447-9870INTERCHANGEABLE
TERMINAL,LUG
92N3589

Frequently Asked Questions

What is NSN 5961-00-166-0220?

NSN 5961-00-166-0220 is a Semiconductor Device Assembly, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-166-0220?

NSN 5961-00-166-0220 has 1 cross-referenced part number: 1668 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications).

What NSN replaces 5961-00-166-0220?

There are 11 known substitutes for 5961-00-166-0220: 5905-00-106-7014, 4820-00-528-2362, 5975-00-676-8392 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1668?

Key specifications for 1668: Overall Length: 1.625 INCHES NOMINAL IN; Major Components: SEMICONDUCTOR DEVICE,DIODE 4;COMPONENT BOARD 1; Overall Width: 1.270 INCHES NOMINAL IN; Overall Height: 1.063 INCHES NOMINAL IN. 4 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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