03/11/2026

HelaGuard® Metallic Locknuts, 1/2" NPT Thread, 0.50" Dia., NPB Metal, 10/pkg


Part No. 166-90355

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  • Nickel plated brass thread ensures secure connection with brass plated or nylon fittings.
  • NPT thread pattern works with metallic or non-metallic threaded fittings.
  • Use NPT metallic locknuts with 1.25", 1.5" and 2 nylon fittings.


Brand Family HelaGuard®
Color Metal (ML)
Description Locknuts work with NPT threaded fittings or knockout entries.
Global Part Number ALNPB-0500-NPB-ML
Part Number 166-90355
Product Family Flexible Conduit Accessories
Product Subfamily Conduit Locknuts
Short Description HelaGuard® Metallic Locknuts, 1/2" NPT Thread, 0.50" Dia., NPB Metal, 10/pkg
Type ALNPB-0500
Thread Size (imperial) 1/2 "
Thread Type NPT
CE Certification No
CSA Certified No
Material NPB
Material Nickel Plated Brass (NPB)
Operating Temperature -58°F to +275°F (-50°C to +135°C)
Prop65 Warning No
REACH Conformity No
ROHS Compliant No
UL Listed (US and Canada) No
UL Listed (US) No
UL Recognized (US and Canada) No
UL Recognized (US) No
UV Resistant No
Carton Qty. 1
Customs Number 7415338550
GTIN-13 / EAN 4031026515120
Harmonized Tariff Schedule Code 7415.33.8010
Packaging Type pack
Pkg. Qty. 10EA
Pkg. Qty. 10
UPC 089306389255
Product Keyword helaguard, conduit, conduits, corrugated conduit, corrugated conduits, fitting, fittings, protection hose, protection hoses, conduits and fittings, protective hose, protective hoses, protection tube, flexible tube, corrugated tubing, corrugated tube, corr

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