PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

257Junction Box

Raco, a Division of Hubbell Incorporated(delaware) · NSN 5975-00-681-0545 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-681-0545 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-681-0545. Primary manufacturer part number: 257.
Features
  • Junction Box — FSC 5975
  • Material: STEEL BODY
  • Body Width: 4.688 INCHES NOMINAL IN
  • Style Designator: SQUARE-TWO GANG BOX
  • Entrance Quantity: 17
  • Cover Mounting Hole Quantity: 4
  • Inside Depth: 2.125 INCHES NOMINAL IN
  • Body Length: 4.688 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Body construction
General Description

The Junction Box, cataloged under National Stock Number 5975-00-681-0545, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN5975-00-681-0545
Primary Part Number257
Item NameJunction Box
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerRaco, a Division of Hubbell Incorporated(delaware)
StatusACTIVE
MaterialSTEEL BODY
Body Width4.688 INCHES NOMINAL IN
Style DesignatorSQUARE-TWO GANG BOX
Entrance Quantity17
Cover Mounting Hole Quantity4
Inside Depth2.125 INCHES NOMINAL IN
Body Length4.688 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-043-2332257 INTERCHANGEABLE
Jack,telephone
Birnbach Co Inc
3460-00-187-8674 INTERCHANGEABLE
Wheel,abrasive
5940-00-235-798701-1008-1-0210 INTERCHANGEABLE
Post,binding,electrical
Concord Electronics, Inc.
5340-00-598-5078257 INTERCHANGEABLE
Plug,expansion
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
6680-00-684-126617XIXXX0200A5AAXXX01 INTERCHANGEABLE
Meter,fluid Flow Indicating,diff
Cameron Energy Services Corp.
5315-00-933-7657257 INTERCHANGEABLE
Staple
Arrow Fastener Company, Inc.
6240-00-944-1267 INTERCHANGEABLE
Lamp,incandescent
6240-01-062-1682 INTERCHANGEABLE
Lamp Flasher
5930-01-111-57582057 INTERCHANGEABLE
Switch,code Indicating Wheel
Electro Switch Corp. Dba Electro Switch Corp Div Digitran a Unit of Electro Switch
6130-01-140-1778 INTERCHANGEABLE
Power Supply
Cross-Reference Index
Part NumberManufacturer
257 PRIMARY Raco, a Division of Hubbell Incorporated(delaware) (USA)
72171 1-2 3-4 Abb Installation Products Inc (USA)
72171 1/2 3/4 E Abb Installation Products Inc (USA)
5-SDW-SPL PRIMARY Ni Industries Inc Bowers Mfg Co Div (USA)
Related Parts
5935-00-043-2332INTERCHANGEABLE
JACK,TELEPHONE
257
3460-00-187-8674INTERCHANGEABLE
WHEEL,ABRASIVE
5940-00-235-7987INTERCHANGEABLE
POST,BINDING,ELECTRICAL
01-1008-1-0210
5340-00-598-5078INTERCHANGEABLE
PLUG,EXPANSION
257
6680-00-684-1266INTERCHANGEABLE
METER,FLUID FLOW INDICATING,DIFF
17XIXXX0200A5AAXXX01
5315-00-933-7657INTERCHANGEABLE
STAPLE
257
6240-00-944-1267INTERCHANGEABLE
LAMP,INCANDESCENT
6240-01-062-1682INTERCHANGEABLE
LAMP FLASHER
5930-01-111-5758INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
2057
6130-01-140-1778INTERCHANGEABLE
POWER SUPPLY
1560-01-165-7158INTERCHANGEABLE
PLATE,STRUCTURAL,AIRCRAFT
4820-01-173-8446INTERCHANGEABLE
CAP,VALVE
257

Frequently Asked Questions

What is NSN 5975-00-681-0545?

NSN 5975-00-681-0545 is a Junction Box, 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 5975-00-681-0545?

NSN 5975-00-681-0545 has 4 cross-referenced part numbers: 257 (Raco, a Division of Hubbell Incorporated(delaware)), 72171 1-2 3-4 (Abb Installation Products Inc), 72171 1/2 3/4 E (Abb Installation Products Inc), 5-SDW-SPL (Ni Industries Inc Bowers Mfg Co Div).

What NSN replaces 5975-00-681-0545?

There are 12 known substitutes for 5975-00-681-0545: 5935-00-043-2332, 3460-00-187-8674, 5940-00-235-7987 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 257?

Key specifications for 257: Material: STEEL BODY; Body Width: 4.688 INCHES NOMINAL IN; Style Designator: SQUARE-TWO GANG BOX; Entrance Quantity: 17. 7 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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