Eaton Crouse-Hinds NPL50400 304SS Conduit Nipple - Rigid/IMC
Part Number: NPL50400 304SS
Quick Summary
NPL50400 304SS conduit nipple provides rugged stainless steel connections for rigid/IMC conduit in harsh industrial environments. Installers often face corrosion, misalignment, and time-consuming field fabrication in demanding facilities. This product adheres to NEC/CEC standards and supports ordinary/non-hazardous area classifications to help keep installations compliant and safe. The combination of 304 stainless steel and precise machining delivers corrosion resistance, long service life, and predictable performance, reducing maintenance costs. By aligning with compatible locking nuts, reducers, and plugs, it enables faster assembly and lower total installed cost in metal conduit systems.
Product Information
Extended Description
NPL50400 304SS Eaton Crouse-Hinds: Eaton Crouse-Hinds series NPL conduit nipple, Rigid/IMC, 304 stainless steel, 1/2" x 4"
Product Name
Eaton Crouse-Hinds series NPL conduit nipple
Catalog Number
NPL50400 304SS
UPC
662277029827
Product Weight
0.244 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Conduit type
Rigid/IMC
Size and length
1/2" x 4"
Material
304 stainless steel
Crouse-Hinds stainless steel conduit, cable and wire management brochure
Crouse-Hinds series Locknuts, Nipples, Washers, Reducers and Plugs - Rigid-IMC catalog page
Locknuts, Nipples, Washers, Reducers and Plugs - Rigid-IMC UL certification
Locknuts, Nipples, Washers, Reducers and Plugs - Rigid-IMC UL certification
Eaton Specification Sheet - NPL50400 304SS
Material and corrosion resistance: The 304 stainless steel construction provides exceptional corrosion resistance in demanding environments, translating to longer service life and lower maintenance costs in outdoor, damp, or chemically challenging installations. This means fewer field failures and predictable performance across a broad temperature range, especially in facilities handling moisture or corrosive atmospheres. Conduit compatibility and sizing: With a standard 1/2" x 4" size and rigid/IMC compatibility, this nipple fits cleanly into typical conduit runs, reducing field rework and ensuring consistent electrical pathways. Lightweight handling: Weighing 0.244 lb per piece, the NPL50400 enables faster installation, improved labor efficiency, and easier handling in tight electrical rooms or crowded enclosures. Code compliance and certification: NEC/CEC standardization and ordinary/non-hazardous area suitability simplify procurement and documentation, helping you meet regulatory requirements without sacrificing performance. Inventory and compatibility: As part of the Eaton Crouse-Hinds line, this nipple integrates with locknuts, washers, reducers, and plugs, streamlining sourcing and reducing part variety. For reference, consult the Eaton NPL specification sheet to verify dimensional tolerances and accessory compatibility.
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FAQs
To install NPL50400 304SS conduit nipple, pair it with compatible Crouse-Hinds locknuts, washers, and reducers, slide the nipple onto the rigid/IMC conduit, thread into the mating fitting, and tighten to NEC/CEC torque guidelines. Ensure proper alignment and that the 1/2 in x 4 in stainless nipple seats fully against the enclosure to maintain integrity and corrosion protection.
The 304 stainless steel construction delivers robust corrosion resistance, maintaining mechanical integrity in moisture, humidity, and industrial contaminants. Expect extended service life, reduced maintenance cycles, and consistent electrical conductivity over time, making it well-suited for enduring industrial applications where stainless fittings are preferred.
Yes. The NPL50400 304SS conduit nipple is specified for Ordinary/Non-Hazardous Locations, and its stainless steel composition provides enhanced corrosion resistance for both indoor and outdoor use where exposure to moisture or benign contaminants is a consideration.
The product specification references NEC/CEC standards and Ordinary/Non-Hazardous Area Classification, aligning with general electrical code compliance for non-hazardous environments. For full certification details, consult the Eaton specification sheet and the related NEC/CEC documentation to ensure your installation meets local code requirements.
A stainless 304 nipple offers superior corrosion resistance, reducing replacements and maintenance in damp or harsh environments. Although the up-front material cost is higher than plated alternatives, the extended service life, fewer field repairs, and quicker installations translate to lower total installed cost and improved uptime over the system’s lifecycle.