Kuriyama of America, Inc.

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Two wire braid or four wire spiral reinforced hydraulic hose with SUPERTUFF cover - AT4KST.
AT4KST - Double wire braid and Four wire spiral
Specification Reference:
EN 857 2SC (1/2), SAE 100 R12 (5/8, 3/4, 1), EN 856 4SH (1 1/2, 2)
Meets flame resistance acceptance designation US MSHA IC-152/8.

Construction :
Tube - Synthetic rubber, black..oil-resistant.
Reinforcement - Double high tensile steel wire compact braid or four layers of spirally wrapped high tensile steel wire reinforcement separated by synthetic rubber cushion on a fabric layer.
Cover - Synthetic rubber, black… oil, fuel, weather, ozone and abrasion-resistant.
Branding - ALFAGOMMA AT4K SUPERTUFF ID…WP 28 MPa BP 112 MPa MSHA IC-152/8 – Q/YR

Temperature Range : -40ºF (-40ºC) to 250ºF (121ºC) constant operation
Maximum Operating Temperature : 250ºF (121ºC)
Air Maximum Temperature : 175ºF (80ºC)
Operating temperature in excess of 250ºF (121ºC) may materially reduce the life of the hose.

Freight: Hydraulic Hose can be combined with other KOA products for qualifying prepaid freight orders.
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Item #

Size Code

Nominal I.D.

Nominal O.D.

Max. Working Pressure

Min. Bend Radius

Approx. Weight

Coupling Recommendations AlfaCrimp One-Piece

Coupling Recommendations Two-Piece Couplings Ferrule Non-Skive

Coupling Recommendations Two-Piece Couplings Ferrule Interlock

AT4KST-08 N/A 08 N/A 1/2 in12.70 mm N/A 0.81 in20.6 mm N/A 4,500 psi N/A 3.5 in90 mm N/A 0.35 lbs/ft N/A D N/A AF4 N/A XF2
AT4KST-10 N/A 10 N/A 5/8 in15.90 mm N/A 1.080 in27.4 mm N/A 4,000 psi N/A 4.0 in100 mm N/A 0.74 lbs/ft N/A D N/A AF4 N/A XF2
AT4KST-12 N/A 12 N/A 3/4 in19 mm N/A 1.21 in30.7 mm N/A 4,000 psi N/A 5.0 in125 mm N/A 0.87 lbs/ft N/A D N/A AF4 N/A XF2
AT4KST-16 N/A 16 N/A 1 in25.40 mm N/A 1.50 in38 mm N/A 4,000 psi N/A 6.0 in150 mm N/A 1.28 lbs/ft N/A D N/A AF4 N/A XF2
AT4KST-20 N/A 20 N/A 1 1/4 in31.80 mm N/A 1.87 in47.5 mm N/A 4,000 psi N/A 9.0 in230 mm N/A 1.81 lbs/ft N/A N/A N/A XF2
AT4KST-24 N/A 24 N/A 1.50 in38.10 mm N/A 2.10 in53.5 mm N/A 4,000 psi N/A 17.7 in450 mm N/A 2.22 lbs/ft N/A N/A N/A XF2
AT4KST-32 N/A 32 N/A 2.00 in50.80 mm N/A 2.680 in68.1 mm N/A 4,000 psi N/A 23.4 in595 mm N/A 3.23 lbs/ft N/A N/A N/A XF2
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