PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4145Test Set Subassembly,aircraft Co

Electro Optical Industries Inc · NSN 4920-01-351-8451 · FSC 4920 · No Item Name Available
Verified by PartsTable
NSN 4920-01-351-8451 — this item is cataloged by the U.S. Government under National Stock Number 4920-01-351-8451. Primary manufacturer part number: 4145.
Features
  • Test Set Subassembly,aircraft Co — FSC 4920
  • 2 verified cross-references
  • Primary manufacturer: Electro Optical Industries Inc
Applications
  • Maintenance depot operations
  • Field repair and servicing
  • Vehicle maintenance facilities
General Description

The Test Set Subassembly,aircraft Co, cataloged under National Stock Number 4920-01-351-8451, is classified within Federal Supply Class 4920 (No Item Name Available) of the Maintenance and Repair Shop Equipment group. The primary manufacturer of record is Electro Optical Industries Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4920-01-351-8451
Primary Part Number4145
Item NameTest Set Subassembly,aircraft Co
FSC / FSG4920 / 49 — No Item Name Available
ManufacturerElectro Optical Industries Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-054-6865 INTERCHANGEABLE
Packing,preformed
4940-00-057-2428 INTERCHANGEABLE
Diaphragm,air
5910-00-110-32179420-14-90029 INTERCHANGEABLE
Capacitor,variable,air Dielectri
Pax Mfg Corp Hammarlund Mfg Co Div
5330-00-119-93294139 INTERCHANGEABLE
Packing,preformed
Thomas Electronics, Inc. Dba Thomas Electronics of New York Incorporated
4820-00-213-0181010.302.0075 INTERCHANGEABLE
Seat,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5305-00-263-9164AN565D6L3 INTERCHANGEABLE
Setscrew
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5305-00-349-81804139 INTERCHANGEABLE
Screw,intermediate
Wakmann Watch Company Inc
5305-00-349-94334145 INTERCHANGEABLE
Screw,upper Cap
Wakmann Watch Company Inc
4730-00-476-7143 INTERCHANGEABLE
Elbow,pipe
5998-00-489-0604 INTERCHANGEABLE
Printed Wiring Board
Cross-Reference Index
Part NumberManufacturer
4139 Electro Optical Industries Inc (USA)
4145 PRIMARY Electro Optical Industries Inc (USA)
Related Parts
5330-00-054-6865INTERCHANGEABLE
PACKING,PREFORMED
4940-00-057-2428INTERCHANGEABLE
DIAPHRAGM,AIR
5910-00-110-3217INTERCHANGEABLE
CAPACITOR,VARIABLE,AIR DIELECTRI
9420-14-90029
5330-00-119-9329INTERCHANGEABLE
PACKING,PREFORMED
4139
4820-00-213-0181INTERCHANGEABLE
SEAT,VALVE
010.302.0075
5305-00-263-9164INTERCHANGEABLE
SETSCREW
AN565D6L3
5305-00-349-8180INTERCHANGEABLE
SCREW,INTERMEDIATE
4139
5305-00-349-9433INTERCHANGEABLE
SCREW,UPPER CAP
4145
4730-00-476-7143INTERCHANGEABLE
ELBOW,PIPE
5998-00-489-0604INTERCHANGEABLE
PRINTED WIRING BOARD
6625-00-532-2905INTERCHANGEABLE
VOLTMETER
1380
5815-00-945-6437INTERCHANGEABLE
CARRIAGE ADJUSTMENT

Frequently Asked Questions

What is NSN 4920-01-351-8451?

NSN 4920-01-351-8451 is a Test Set Subassembly,aircraft Co, manufactured by Electro Optical Industries Inc, classified under FSC 4920 (No Item Name Available). Status: active.

What are the part numbers for NSN 4920-01-351-8451?

NSN 4920-01-351-8451 has 2 cross-referenced part numbers: 4139 (Electro Optical Industries Inc), 4145 (Electro Optical Industries Inc).

What NSN replaces 4920-01-351-8451?

There are 12 known substitutes for 4920-01-351-8451: 5330-00-054-6865, 4940-00-057-2428, 5910-00-110-3217 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4145?

Key specifications for 4145: Special Features: USED TO DISPLAY THE BLACKBODY TEMPERATURE; End Item Identification: F110 ENGINE. 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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