PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WC581Conduit,metal,rigid

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5975-00-178-1214 · FSC 5975 · No Item Name Available
Verified by PartsTable
NSN 5975-00-178-1214 — this item is cataloged by the U.S. Government under National Stock Number 5975-00-178-1214. Primary manufacturer part number: WC581.
Features
  • Conduit,metal,rigid — FSC 5975
  • Thread Length: 1.730 INCHES NOMINAL BOTH ENDS IN
  • Thread Series Designator: NPT BOTH ENDS
  • Length: 120.000 INCHES NOMINAL IN
  • Outside Diameter: 4.500 INCHES NOMINAL IN
  • Style Designator: CONDUIT W/COUPLING
  • Nominal Thread Size: 4.000 INCHES BOTH ENDS IN
  • Structural Design: THICKWALL
Applications
  • Applications requiring Steel Body construction
General Description

The Conduit,metal,rigid, cataloged under National Stock Number 5975-00-178-1214, 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 Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5975-00-178-1214
Primary Part NumberWC581
Item NameConduit,metal,rigid
FSC / FSG5975 / 59 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusCANCELLED
Thread Length1.730 INCHES NOMINAL BOTH ENDS IN
Thread Series DesignatorNPT BOTH ENDS
Length120.000 INCHES NOMINAL IN
Outside Diameter4.500 INCHES NOMINAL IN
Style DesignatorCONDUIT W/COUPLING
Nominal Thread Size4.000 INCHES BOTH ENDS IN
Structural DesignTHICKWALL
MaterialSTEEL BODY
Inside Diameter4.026 INCHES NOMINAL IN
Nondefinitive Spec/std DataA TYPE AND 1 CLASS AND 4 IN. SIZE IN
Trade Size4.000
Surface TreatmentZINC BODY
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5975-00-432-2819UL 514B INTERCHANGEABLE
Nipple,electrical Conduit
Underwriters Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
WC581 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
WW-C-581 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ANSI UL6 Underwriters Laboratories Inc (USA)
Related Parts
5975-00-432-2819INTERCHANGEABLE
NIPPLE,ELECTRICAL CONDUIT
UL 514B

Frequently Asked Questions

What is NSN 5975-00-178-1214?

NSN 5975-00-178-1214 is a Conduit,metal,rigid, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5975 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5975-00-178-1214?

NSN 5975-00-178-1214 has 3 cross-referenced part numbers: WC581 (Federal Specifications Promulgated by General Services Administration Washington DC), WW-C-581 (Federal Specifications Promulgated by General Services Administration Washington DC), ANSI UL6 (Underwriters Laboratories Inc).

What NSN replaces 5975-00-178-1214?

There is 1 known substitute for 5975-00-178-1214: 5975-00-432-2819. Verify interchangeability with system specifications before substitution.

What are the specifications of WC581?

Key specifications for WC581: Thread Length: 1.730 INCHES NOMINAL BOTH ENDS IN; Thread Series Designator: NPT BOTH ENDS; Length: 120.000 INCHES NOMINAL IN; Outside Diameter: 4.500 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5975-00-178-1214 still in active supply?

NSN 5975-00-178-1214 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.
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