A-LOK Fittings

Parker A-LOK® double-ferrule tube fittings are designed to provide an alternative for the installer of double ferrule tube fittings in need of leak-free connections for process and control systems, analyzers, and OEM equipment applications.

Compare Part Number Brand Stock Price
  • 4BF4-316
  • A-LOK back ferrule
  • Parker A-LOK back ferrule, 316SS, for 1/4" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-404-1
Parker A-lok 1653
Our price:
$1.45

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Parker A-lok 1619
Our price:
$1.61

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  • 1SC1-316
  • A-LOK union
  • Parker A-LOK union, 316SS, 1/16" double ferrule tube fitting x 1/16" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-100-6
Parker A-lok 1479
Our price:
$22.84

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  • 2FF2-316
  • A-LOK front ferrule
  • Parker A-LOK front ferrule, 316SS, for 1/8" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-203-1
Parker A-lok 850
Our price:
$1.95

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Parker A-lok 841
Our price:
$3.42

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  • 1NU1-B
  • A-LOK nut
  • Parker A-LOK nut, brass, for 1/16" double ferrule tube fitting
Parker A-lok 388
Our price:
$1.43

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  • 4NU4-316
  • A-LOK nut
  • Parker A-LOK nut, 316SS, for 1/4" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-402-1
Parker A-lok 352
Our price:
$2.66

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Parker A-lok 311
Our price:
$1.26

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  • 2BF2-316
  • A-LOK back ferrule
  • Parker A-LOK back ferrule, 316SS, for 1/8" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-204-1
Parker A-lok 250
Our price:
$1.79

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  • 6BF6-316
  • A-LOK back ferrule
  • Parker A-LOK back ferrule, 316SS, for 3/8" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-604-1
Parker A-lok 248
Our price:
$1.83

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  • 12FF12-316
  • A-LOK front ferrule
  • Parker A-LOK front ferrule, 316SS, for 3/4" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-1213-1
Parker A-lok 227
Our price:
$4.38

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  • 12NU12-316
  • A-LOK nut
  • Parker A-LOK nut, 316SS, for 3/4" double ferrule tube fitting
    Swagelok Equivalent Part Number: SS-1212-1
Parker A-lok 176
Our price:
$10.53

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