PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2558Box Connector,electrical

Abb Installation Products Inc · NSN 5975-00-660-4294 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-660-4294 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-660-4294. Primary manufacturer part number: 2558.
Features
  • Box Connector,electrical — FSC 5975
  • Nominal Thread Size: 1.250 INCHES SECOND END IN
  • End Type: GLAND NUT W/INTERNAL THREAD FIRST END
  • Style Designator: STRAIGHT
  • Hazardous Locations/environmental Protection: WATERTIGHT-NEMA TYPE 4
  • Thread Length: 0.625 INCHES NOMINAL SECOND END IN
  • Conduit Type Accommodated: FLEXIBLE NONMETALLIC FIRST END
  • Material: STEEL
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
  • Applications requiring Steel construction
General Description

The Box Connector,electrical, cataloged under National Stock Number 5975-00-660-4294, 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 Abb Installation Products Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5975-00-660-4294
Primary Part Number2558
Item NameBox Connector,electrical
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerAbb Installation Products Inc
StatusCANCELLED
Nominal Thread Size1.250 INCHES SECOND END IN
End TypeGLAND NUT W/INTERNAL THREAD FIRST END
Style DesignatorSTRAIGHT
Hazardous Locations/environmental ProtectionWATERTIGHT-NEMA TYPE 4
Thread Length0.625 INCHES NOMINAL SECOND END IN
Conduit Type AccommodatedFLEXIBLE NONMETALLIC FIRST END
MaterialSTEEL
End TypeEXTERNAL THREAD SECOND END
Surface TreatmentCADMIUM
Item Accommodated Trade Size1.250 INCHES FIRST END IN
Thread Series DesignatorNPT SECOND END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3110-00-100-07262507 INTERCHANGEABLE
Cone and Rollers,tapered Roller
L & L Boiler Maintenance Inc
3110-00-157-0619YR1-3/8-3 INTERCHANGEABLE
Bearing,roller,needle
Accurate Bushing Company, Inc.
5930-00-173-8356 INTERCHANGEABLE
Cover,electrical Switch
5120-00-196-6589MMM2558 INTERCHANGEABLE
Inserter,electrical Contact
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation
5950-00-418-3822SM-B-619160 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5910-00-933-704007-02558-1A INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Ballantine Laboratories Inc
5950-01-226-77918500599 INTERCHANGEABLE
Transformer,power
Honeywell International Inc. Dba Honeywell International
5310-01-629-96732558 INTERCHANGEABLE
Nut,plain,hexagon
Crytologic Systems Group
Cross-Reference Index
Part NumberManufacturer
4805113 Kalmar AC Inc (USA)
SR-125-1000 Egs Electric Co Llc (USA)
280684 Raytheon Technical Services Company (USA)
2558 PRIMARY Abb Installation Products Inc (USA)
13599067-7 Us Army Aviation and Missile Command (USA)
Related Parts
3110-00-100-0726INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
2507
3110-00-157-0619INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
YR1-3/8-3
5930-00-173-8356INTERCHANGEABLE
COVER,ELECTRICAL SWITCH
5120-00-196-6589INTERCHANGEABLE
INSERTER,ELECTRICAL CONTACT
MMM2558
5950-00-418-3822INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
SM-B-619160
5910-00-933-7040INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
07-02558-1A
5950-01-226-7791INTERCHANGEABLE
TRANSFORMER,POWER
8500599
5310-01-629-9673INTERCHANGEABLE
NUT,PLAIN,HEXAGON
2558

Frequently Asked Questions

What is NSN 5975-00-660-4294?

NSN 5975-00-660-4294 is a Box Connector,electrical, manufactured by Abb Installation Products Inc, classified under FSC 5975 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5975-00-660-4294?

NSN 5975-00-660-4294 has 5 cross-referenced part numbers: 4805113 (Kalmar AC Inc), SR-125-1000 (Egs Electric Co Llc), 280684 (Raytheon Technical Services Company), 2558 (Abb Installation Products Inc), 13599067-7 (Us Army Aviation and Missile Command).

What NSN replaces 5975-00-660-4294?

There are 8 known substitutes for 5975-00-660-4294: 3110-00-100-0726, 3110-00-157-0619, 5930-00-173-8356 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2558?

Key specifications for 2558: Nominal Thread Size: 1.250 INCHES SECOND END IN; End Type: GLAND NUT W/INTERNAL THREAD FIRST END; Style Designator: STRAIGHT; Hazardous Locations/environmental Protection: WATERTIGHT-NEMA TYPE 4. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5975-00-660-4294 still in active supply?

NSN 5975-00-660-4294 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com