PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2123Box Connector,electrical

Raco, a Division of Hubbell Incorporated(delaware) · NSN 5975-01-066-6491 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-01-066-6491 — this item is cataloged by the U.S. Government under National Stock Number 5975-01-066-6491. Primary manufacturer part number: 2123.
Features
  • Box Connector,electrical — FSC 5975
  • End Type: EXTERNAL THREAD SECOND END
  • Hazardous Locations/environmental Protection: CEMENT TIGHT
  • Material: STEEL
  • Furnished Items: INSULATION SLEEVING AND LOCKNUT
  • End Type: STRAIGHT SETSCREW FIRST END
  • Item Accommodated Trade Size: 0.750 INCHES FIRST END IN
  • Style Designator: SET SCREW
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
  • Applications requiring Steel construction
General Description

The Box Connector,electrical, cataloged under National Stock Number 5975-01-066-6491, is classified within Federal Supply Class 5975 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raco, a Division of Hubbell Incorporated(delaware). Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, 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
NSN5975-01-066-6491
Primary Part Number2123
Item NameBox Connector,electrical
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerRaco, a Division of Hubbell Incorporated(delaware)
StatusACTIVE
End TypeEXTERNAL THREAD SECOND END
Hazardous Locations/environmental ProtectionCEMENT TIGHT
MaterialSTEEL
Furnished ItemsINSULATION SLEEVING AND LOCKNUT
End TypeSTRAIGHT SETSCREW FIRST END
Item Accommodated Trade Size0.750 INCHES FIRST END IN
Style DesignatorSET SCREW
Conduit Type AccommodatedRIGID METALLIC THINWALL FIRST END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
3431-00-102-231545V42 INTERCHANGEABLE
Collet Body,welding Torch
Esab Group, Inc., the Dba Esab Welding and Cutting Products Div Esab Welding and Cuttng
1680-00-242-1129 INTERCHANGEABLE
Cap,coupling
4320-00-375-2878 INTERCHANGEABLE
Eccentric,shaft,pum
3455-00-395-000115154 INTERCHANGEABLE
Cutter,milling,end
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
3120-00-737-1171637008 INTERCHANGEABLE
Bearing Half,sleeve
Am General Llc
5895-00-991-8998 INTERCHANGEABLE
Parts Kit,dispenser
5306-01-109-13262050-1 INTERCHANGEABLE
Bolt,eye
Buckeye Forge Inc
4820-01-186-87232050-1 INTERCHANGEABLE
Cartridge,relief Valve
Droitcour Co
5340-01-314-8107B205010 INTERCHANGEABLE
Boot,dust and Moisture Seal
Haldex Brake Products Corporation
6510-01-643-802520501 INTERCHANGEABLE
Dressing,barrier
Smith & Nephew, Inc. Div Advanced Wound Management
Cross-Reference Index
Part NumberManufacturer
5033 Abb Installation Products Inc (USA)
20501 Atlas Technologies Inc (USA)
1C-32 North Coast Electric Co Government Sales Div (USA)
2123 PRIMARY Raco, a Division of Hubbell Incorporated(delaware) (USA)
1151-S Atlas Technologies Inc (USA)
Related Parts
3431-00-102-2315INTERCHANGEABLE
COLLET BODY,WELDING TORCH
45V42
1680-00-242-1129INTERCHANGEABLE
CAP,COUPLING
4320-00-375-2878INTERCHANGEABLE
ECCENTRIC,SHAFT,PUM
3455-00-395-0001INTERCHANGEABLE
CUTTER,MILLING,END
15154
3120-00-737-1171INTERCHANGEABLE
BEARING HALF,SLEEVE
637008
5895-00-991-8998INTERCHANGEABLE
PARTS KIT,DISPENSER
5306-01-109-1326INTERCHANGEABLE
BOLT,EYE
2050-1
4820-01-186-8723INTERCHANGEABLE
CARTRIDGE,RELIEF VALVE
2050-1
5340-01-314-8107INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
B205010
6510-01-643-8025INTERCHANGEABLE
DRESSING,BARRIER
20501
6515-01-649-9420INTERCHANGEABLE
MOUTHPIECE,SPIROMETER
2050-1

Frequently Asked Questions

What is NSN 5975-01-066-6491?

NSN 5975-01-066-6491 is a Box Connector,electrical, manufactured by Raco, a Division of Hubbell Incorporated(delaware), classified under FSC 5975 (No Item Name Available). Status: active.

What are the part numbers for NSN 5975-01-066-6491?

NSN 5975-01-066-6491 has 5 cross-referenced part numbers: 5033 (Abb Installation Products Inc), 20501 (Atlas Technologies Inc), 1C-32 (North Coast Electric Co Government Sales Div), 2123 (Raco, a Division of Hubbell Incorporated(delaware)), 1151-S (Atlas Technologies Inc).

What NSN replaces 5975-01-066-6491?

There are 11 known substitutes for 5975-01-066-6491: 3431-00-102-2315, 1680-00-242-1129, 4320-00-375-2878 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2123?

Key specifications for 2123: End Type: EXTERNAL THREAD SECOND END; Hazardous Locations/environmental Protection: CEMENT TIGHT; Material: STEEL; Furnished Items: INSULATION SLEEVING AND LOCKNUT. 8 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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