21/02/2026

Fittings for Flexbile Metallic Conduits with Jacketed Cover
Art.-No. 166-90553 | FSU50-M50-M-NPB-ML

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  • Nickel plated brass compression fitting used with FSU, LFHU and FPU flexible metallic conduit.
  • Two part fitting comprised of shell and body with external metric thread delivers IP54 ingress protection.
  • Suitable for knockouts and secured with a metric threaded locknut.
Brand Family HelaGuard®
Color Metal (ML)
Description Two-part nickel plated brass straight fitting with fixed external metric thread. Fitting comprised of shell and body suitable for knockout entries. For use with FSU, FPU and LFHU flexible metal conduit.
PART DESCRIPTION FSU50-M50-M-NPB-ML
Packaging Type pack
Part No. FSU50-M50-M
Short Desc. Metallic Compression Fitting, Fixed Straight, M50 Metric Thread, 1.5" (50mm) Dia, NPB Metal, 1/pkg
Technical Description Manufacturer Reference Number: FSU50-M50-M
Type FSU50-M50-M
UV Resistant No
Bore Diameter (metric) 44.7
Bore Hole Diameter (imperial) 1.76"
Height (imperial) 2.28"
Height (metric) 58.0mm
Length (imperial) 1.65"
Length (metric) 42.0mm
Nominal Diameter (imperial) 1.5"
Nominal Diameter (metric) 50.0mm
Thread Length (imperial) 0.59"
Thread Length (metric) 15mm
Thread Size (metric) M50
Thread Type metric
Trade Size 1-1/2 "
Wrenching Flat Size 42.0mm
Wrenching Flat Size 1.65"
CSA Certified No
Halogen Free Yes
IP-Rating IP65
Material NPB
Material Nickel Plated Brass (NPB)
Operating Temperature -58°F to +572°F (-50°C to +300°C)
REACH Conformity Yes
ROHS compliant Yes
UL Listed (US and Canada) No
UL Listed (US) No
UL Recognized (US and Canada) No
UL Recognized (US) No
Pkg. Qty. 1Pieces
Pkg. Qty. 1
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