• SMC KKH S Coupler Socket (Impact Resistant, KKH3 / KKH4)
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SMC KKH S Coupler Socket (Impact Resistant, KKH3 / KKH4)

SMC KKH S Coupler Socket (Impact Resistant, KKH3 / KKH4)

SMC KKH series S coupler sockets absorb drop impact of about 0.5 J and mate with standard KK series plugs, in 1/8 and 1/4 body sizes.

Key features

  • Absorbs drop impact equivalent to 0.5 J impact energy (rubber sleeve cover, high-impact PBT spacer and cover ring)
  • Plug and socket pull-out strength doubled versus the previous model
  • Effective area equal to the KK series (20 mm2 for 1/8, 39 mm2 for 1/4)
  • No sleeve lock; one-touch connection with built-in socket check valve
  • Male thread (R, sealant), female thread (Rc) and FRU hose nut fitting connections
  • Socket only: use KK series plugs (KK3P / KK4P)

Specifications

Part Socket
Fluid Air, water
Operating pressure range KKH3 -90 kPa to 1 MPa; KKH4 0 to 1 MPa
Proof pressure 1.5 MPa
Ambient and fluid temperature Air -5 to 60 deg C; water 5 to 40 deg C (no freezing)
Plating / seal Electroless nickel plated; male thread with sealant
Mating plug KK series plug
Source SMC Korea catalog KK/KKH Series (SMCKR_KK_KKH.pdf), p. 340-342
KKH3S-01MS Body size: 1/8 | Connection: Male thread | Port: R1/8
KKH3S-02MS Body size: 1/8 | Connection: Male thread | Port: R1/4
KKH3S-03MS Body size: 1/8 | Connection: Male thread | Port: R3/8
KKH3S-01F Body size: 1/8 | Connection: Female thread | Port: Rc1/8
KKH3S-02F Body size: 1/8 | Connection: Female thread | Port: Rc1/4
KKH3S-03F Body size: 1/8 | Connection: Female thread | Port: Rc3/8
KKH3S-50N Body size: 1/8 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 5/8 mm
KKH3S-60N Body size: 1/8 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6/9 mm
KKH3S-65N Body size: 1/8 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6.5/10 mm
KKH4S-01MS Body size: 1/4 | Connection: Male thread | Port: R1/8
KKH4S-02MS Body size: 1/4 | Connection: Male thread | Port: R1/4
KKH4S-03MS Body size: 1/4 | Connection: Male thread | Port: R3/8
KKH4S-04MS Body size: 1/4 | Connection: Male thread | Port: R1/2
KKH4S-02F Body size: 1/4 | Connection: Female thread | Port: Rc1/4
KKH4S-03F Body size: 1/4 | Connection: Female thread | Port: Rc3/8
KKH4S-50N Body size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 5/8 mm
KKH4S-60N Body size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6/9 mm
KKH4S-65N Body size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6.5/10 mm
KKH4S-80N Body size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 8/12 mm
KKH4S-85N Body size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 8.5/12.5 mm
CouplersSMC
20 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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SMC KKH S Coupler Socket (Impact Resistant, KKH3 / KKH4)

Brand SMC·Couplers

Available part numbers (20)

KKH3S-01MS, KKH3S-02MS, KKH3S-03MS, KKH3S-01F, KKH3S-02F, KKH3S-03F, KKH3S-50N, KKH3S-60N, KKH3S-65N, KKH4S-01MS + 10 more — see full table ↓

How to order

Send the SMC part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
KKH3S-01MSBody size: 1/8 | Connection: Male thread | Port: R1/8
KKH3S-02MSBody size: 1/8 | Connection: Male thread | Port: R1/4
KKH3S-03MSBody size: 1/8 | Connection: Male thread | Port: R3/8
KKH3S-01FBody size: 1/8 | Connection: Female thread | Port: Rc1/8
KKH3S-02FBody size: 1/8 | Connection: Female thread | Port: Rc1/4
KKH3S-03FBody size: 1/8 | Connection: Female thread | Port: Rc3/8
KKH3S-50NBody size: 1/8 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 5/8 mm
KKH3S-60NBody size: 1/8 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6/9 mm
KKH3S-65NBody size: 1/8 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6.5/10 mm
KKH4S-01MSBody size: 1/4 | Connection: Male thread | Port: R1/8
KKH4S-02MSBody size: 1/4 | Connection: Male thread | Port: R1/4
KKH4S-03MSBody size: 1/4 | Connection: Male thread | Port: R3/8
KKH4S-04MSBody size: 1/4 | Connection: Male thread | Port: R1/2
KKH4S-02FBody size: 1/4 | Connection: Female thread | Port: Rc1/4
KKH4S-03FBody size: 1/4 | Connection: Female thread | Port: Rc3/8
KKH4S-50NBody size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 5/8 mm
KKH4S-60NBody size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6/9 mm
KKH4S-65NBody size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 6.5/10 mm
KKH4S-80NBody size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 8/12 mm
KKH4S-85NBody size: 1/4 | Connection: Nut fitting (FRU hose) | Port: Hose ID/OD 8.5/12.5 mm

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