T&B Conduit Fittings

T&B Conduit FittingsRigid and Intermediate Metal Conduit Fittings(B) ThicknessSteel or malleable iron (steel thru 2”)or Aluminum 624Many of the T&B standard conduit and cablefittings are furnished with “case hardenedlocknuts”. This exclusive feature means thelocknut tightens up against the box withoutdeforming; the locknut bites into the boxproviding a positive ground; the fitting canbe tightened from outside the box.LocknutsCat. No.Dimensions (in.)Stl. or M.I. Alum. Size A B139* † — 1/4” 27/32 5/32140* — 3/8” 15/16 5/32141** 141AL 1/2” 1-7/64 5/32142-TB** 142AL 3/4” 1-3/8 3/16143 143AL 1” 1-11/16 13/64144 144AL 1-1/4” 2-5/32 13/64145 145AL 1-1/2” 2-1/2 13/64146-TB 146AL 2” 3 7/32147 147AL 2-1/2” 3-9/16 13/32148 148AL 3” 4-3/16 13/32149 149AL 3-1/2” 4-13/16 15/32150 150AL 4” 5-5/16 15/32151 151AL 4-1/2” 5-15/16 17/32152 152AL 5” 6 -1/2 17/32153 153AL 6” 7-3/4 17/32* Hex shape** Case hardened locknutsAluminum locknuts comply with federal standard of copper-free aluminum; less than .4% copper.For Dura-Plate finish, add prefix 040- to Cat. No. Consult Customer Service for details.† Not UL or CSA certified(B)ThicknessSteel or malleable iron (steel thru 2”).Use anywhere an ordinary locknut is installed toinsure positive bonding of conduit to box andprevent loosening due to vibration. Also can beused for Service Entrance applications inconformance with Code. T&B rigid conduit andE.M.T. (thinwall) fittings comply with FederalSpecification WF 408c.Bonding LocknutsDimensions (in.)Cat. No. Size Screw Sizes A B106 † 1/2” 8-32x 7/16” 1-3/8 .125107 † 3/4” 8-32x 7/16” 1-5/8 .140108 1” 8-32x 7/16” 1-15/16 .170109 1-1/4” 8-32x 7/16” 2-5/32 .170110-TB 1-1/2” 8-32x 7/16” 2-1/2 .170111 2” 8-32x 7/16” 3 .187112-TB † 2-1/2” 1/4-20x 5/8” 3-13/32 .375113-TB † 3” 1/4-20x 5/8” 4-13/16 .375114 † 3-1/2” 1/4-20x 5/8” 4-29/32 .438115-TB † 4” 1/4-20x 5/8” 5-7/16 .438†Not CSA certified.For Dura-Plate finish, add prefix 040- to Cat. No. Consult Customer Service for details.Steel finish: zinc platedMolded Santoprene SealColor: BlueProvides positive seal against water and oil. Foruse with rigid and intermediate metal conduits,or fittings to provide watertight or raintight sealat all enclosures. NPS threads.Sealing FittingsDimensions (in.)Cat. No. Size A B C141SL 1/2 1.140 1/8 1/4142SL 3/4 1.420 5/32 9/32143SL 1 1.770 11/64 9/32144SL 1-1/4 2.281 11/64 5/16145SL 1-1/2 2.598 11/64 9/32146SL 2 3.175 3/16 19/64Steel finish: zinc plated11