PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

377Box Connector,electrical

Abb Installation Products Inc · NSN 5975-01-088-0291 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-01-088-0291 — this item is cataloged by the U.S. Government under National Stock Number 5975-01-088-0291. Primary manufacturer part number: 377.
Features
  • Box Connector,electrical — FSC 5975
  • Item Accommodated Trade Size: 3.000 INCHES FIRST END IN
  • Material: IRON MALLEABLE
  • End Type: EXTERNAL THREAD SECOND END
  • Furnished Items: INSULATED BUSHING AND LOCKNUT AND SEALING RING
  • Style Designator: STRAIGHT
  • Nominal Thread Size: 3.000 INCHES SECOND END IN
  • End Type: INTERNAL THREAD FIRST END
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
  • Applications requiring Iron Malleable construction
General Description

The Box Connector,electrical, cataloged under National Stock Number 5975-01-088-0291, 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 10 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5975-01-088-0291
Primary Part Number377
Item NameBox Connector,electrical
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerAbb Installation Products Inc
StatusACTIVE
Item Accommodated Trade Size3.000 INCHES FIRST END IN
MaterialIRON MALLEABLE
End TypeEXTERNAL THREAD SECOND END
Furnished ItemsINSULATED BUSHING AND LOCKNUT AND SEALING RING
Style DesignatorSTRAIGHT
Nominal Thread Size3.000 INCHES SECOND END IN
End TypeINTERNAL THREAD FIRST END
Inside Diameter3.000 INCHES NOMINAL SINGLE END IN
Conduit Type AccommodatedRIGID METALLIC THICKWALL FIRST END
Hazardous Locations/environmental ProtectionWATERTIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-0223377 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
3110-00-155-744105079-05185 INTERCHANGEABLE
Bearing,roller,tapered
The Timken Corporation
6665-00-488-9467CH300 INTERCHANGEABLE
Detector,gas
Avox Systems Inc Dba Avox Systems Inc
9650-00-529-8373 INTERCHANGEABLE
Lead Shot
2920-00-540-7539377 INTERCHANGEABLE
Spark Plug
Allied-Signal Inc Autolite Div
6240-00-770-2618 INTERCHANGEABLE
Lamp,incandescent
6625-00-912-9905 INTERCHANGEABLE
Generator,signal
3230-00-954-7969377 INTERCHANGEABLE
Blade,circular Saw,woodcutting
Skil Corp
4820-00-956-6204 INTERCHANGEABLE
Valve,gate
4820-01-289-1516 INTERCHANGEABLE
Valve,check
Cross-Reference Index
Part NumberManufacturer
CHM-300 Egs Electric Co Llc (USA)
CH-300 Egs Electric Co Llc (USA)
377 PRIMARY Abb Installation Products Inc (USA)
40-300B Efcor Inc
HUB-300 Egs Electrical Group Appleton Div (USA)
Related Parts
3110-00-100-0223INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
377
3110-00-155-7441INTERCHANGEABLE
BEARING,ROLLER,TAPERED
05079-05185
6665-00-488-9467INTERCHANGEABLE
DETECTOR,GAS
CH300
9650-00-529-8373INTERCHANGEABLE
LEAD SHOT
2920-00-540-7539INTERCHANGEABLE
SPARK PLUG
377
6240-00-770-2618INTERCHANGEABLE
LAMP,INCANDESCENT
6625-00-912-9905INTERCHANGEABLE
GENERATOR,SIGNAL
3230-00-954-7969INTERCHANGEABLE
BLADE,CIRCULAR SAW,WOODCUTTING
377
4820-00-956-6204INTERCHANGEABLE
VALVE,GATE
4820-01-289-1516INTERCHANGEABLE
VALVE,CHECK
5120-01-399-9208INTERCHANGEABLE
PLIERS,RETAINING RING
6640-01-466-4536INTERCHANGEABLE
PAPER,COAGULATION TIME RECORDING
377

Frequently Asked Questions

What is NSN 5975-01-088-0291?

NSN 5975-01-088-0291 is a Box Connector,electrical, manufactured by Abb Installation Products Inc, classified under FSC 5975 (No Item Name Available). Status: active.

What are the part numbers for NSN 5975-01-088-0291?

NSN 5975-01-088-0291 has 5 cross-referenced part numbers: CHM-300 (Egs Electric Co Llc), CH-300 (Egs Electric Co Llc), 377 (Abb Installation Products Inc), 40-300B (Efcor Inc), HUB-300 (Egs Electrical Group Appleton Div).

What NSN replaces 5975-01-088-0291?

There are 12 known substitutes for 5975-01-088-0291: 3110-00-100-0223, 3110-00-155-7441, 6665-00-488-9467 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 377?

Key specifications for 377: Item Accommodated Trade Size: 3.000 INCHES FIRST END IN; Material: IRON MALLEABLE; End Type: EXTERNAL THREAD SECOND END; Furnished Items: INSULATED BUSHING AND LOCKNUT AND SEALING RING. 10 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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