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3K21C Eaton Hansen HK 1-8 Series Male Plug - Female 3/8-18 NPTF VALVED - ISO 7241-1 B Interchange High Impulse Steel Quick Disconnect - Standard Buna-N Seal

3K21C Eaton Hansen HK 1-8 Series Male Plug - Female 3/8-18 NPTF VALVED - ISO 7241-1 B Interchange High Impulse Steel Quick Disconnect - Standard Buna-N Seal

$33.70 - $33.70
$33.70
$33.70 - $33.70
$33.70

Eaton HK 1-8 Series - ISO 7241-1 B Interchange - Plugs (Male) - Steel
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Specifications for Variant SKU: 3K21C Eaton
Shape (Orientation): Straight
Material(s): Steel
Seal Material(s): Buna-N/Nitrile Rubber
Eaton's HK Series coupling sets the industry standard for ISO B Couplings. The HK Series features a rugged ball latch mechanism with automatic self-sealing poppet valves in a wide array of port configurations and multiple valved and non-valved configurations. See How to Order Please reference Fluid Compatibility Chart (Both the elastomer and metal must be considered when determining suitability of combination for a coupling)

SPECIFICATIONS

Applications & Markets:
  • Agriculture
  • Hydraulic Tool
  • General Industry
  • Construction
  • Fluid Transfer
  • Transportation
  • Military
  • Law Enforcement/Rescue
  • Chemical
  • Oil and Gas
  • Consumer Products
  • HVAC
  • Food and Beverage
  • Trucks
  • Aerospace
  • Medical
Features: Meets dimensional requirements to ISO Standard 7241-1 Series B Self-sealing poppet valve design provides excellent high and low pressure sealing Standard seal material: Buna-N PTFE backup rings in sockets (females)
Seal Elastomer options Max. Operation Temperature Range**: Buna-N 40°F to +250°F -40°C to +121°C Neoprene -65°F to +212°F -54°C to +100°C EPDM (Ethylene Propylene Rubber) -65°F to +300°F -54°C to +149°C FKM (Fluorocarbon) -15°F to +400°F -29°C to +204°C

**Based on Eaton recommended temperatures (for reference only) For seals not listed call 330-535-7105

Physical Characteristics

Series Body Size ISO Size Nominal Flow Diameter Max. Operating Pressure Rated Flow Air Inclusion Fluid Loss
in mm mm bar psi lpm gpm cc.max. cc.max.
1HK 1/8 5 4.4 275 4000 3 0.8 0.6 0.5
2HK 1/4 6.3 5.9 345 5000 12 3 1.2 0.9
3HK 3/8 10 7.8 275 4000 23 6 2.9 2.1
4HK 1/2 12.5 10 345 5000 45 12 3.6 3.5
6HK 3/4 20 17 275 4000 100 26 11.5 9.3
8HK 1 25 19.6 275 4000 189 50 18.0 16.9
10HK 1 1/4.* - 26.7 118 1700 288 76 48.0 48.0
12HK 1 1/2 40 35.1 152 2200 375 99 91.3 91.3
20HK 2 1/2 50 46 104 1500 757 200 209.9 209.9

*For questions related to vacuum please contact Eaton **No ISO Standard available for the 10HK

NV = No Valve | VAA = Valve Actuator Assembly | SL = Sleeve Lock (Sockets Only)
Part Number High Impulse Seal Elastomer Valved Body Size ISO Size Thread Size (Female) Dimensions
in mm NPTF BSPP SAE C D E Hex
in(mm) in(mm) in(mm) in(mm)
1K11 - Standard Buna-N Yes 1/8 5 1/8-27 - - 1.26(32.0) 0.65(16.5) 0.44(11.2) 0.56(14.2)
1K11115 - PTFE Yes 1/8 5 1/8-27 - - 1.26(32.0) 0.65(16.5) 0.44(11.2) 0.56(14.2)
1K11118 - Neoprene Yes 1/8 5 1/8-27 - - 1.26(32.0) 0.65(16.5) 0.44(11.2) 0.56(14.2)
1K11143 - FKM Yes 1/8 5 1/8-27 - - 1.26(32.0) 0.65(16.5) 0.44(11.2) 0.56(14.2)
1K11146 - Special Buna-N‡ Yes 1/8 5 1/8-27 - - 1.26(32.0) 0.65(16.5) 0.44(11.2) 0.56(14.2)
1K11192 - EPDM† Yes 1/8 5 1/8-27 - - 1.26(32.0) 0.65(16.5) 0.44(11.2) 0.56(14.2)
1K11VAA - Standard Buna-N No 1/8 5 1/8-27 - - 1.26(32.0) 0.65(16.5) 0.44(11.2) 0.56(14.2)
1K4 - Standard Buna-N Yes 1/8 5 - - 7/16-20 1.41(35.8) 0.79(20.1) 0.59(15.0) 0.69(17.5)
1K4118 - Neoprene Yes 1/8 5 - - 7/16-20 1.41(35.8) 0.79(20.1) 0.59(15.0) 0.69(17.5)
1K4143 - FKM Yes 1/8 5 - - 7/16-20 1.41(35.8) 0.79(20.1) 0.59(15.0) 0.69(17.5)
1K4192 - EPDM† Yes 1/8 5 - - 7/16-20 1.41(35.8) 0.79(20.1) 0.59(15.0) 0.69(17.5)
1K4VAA - Standard Buna-N No 1/8 5 - - 7/16-20 1.41(35.8) 0.79(20.1) 0.59(15.0) 0.69(17.5)
2K16 2K16C Standard Buna-N Yes 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16115 2K16C115 PTFE Yes 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16118 - Neoprene Yes 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16143 2K16C143 FKM Yes 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16146 2K16C146 Special Buna-N‡ Yes 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16192 2K16C192 EPDM† Yes 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16VAA 2K16CVAA Standard Buna-N No 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16BS - Standard Buna-N Yes 1/4 6.3 - 1/4-19 - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16BS115 - PTFE Yes 1/4 6.3 - 1/4-19 - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16BS118 - Neoprene Yes 1/4 6.3 - 1/4-19 - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16BS143 - FKM Yes 1/4 6.3 - 1/4-19 - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16BS146 - Special Buna-N‡ Yes 1/4 6.3 - 1/4-19 - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16BS192 - EPDM† Yes 1/4 6.3 - 1/4-19 - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16BSVAA - Standard Buna-N No 1/4 6.3 - 1/4-19 - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K16NV - Standard Buna-N No 1/4 6.3 1/4-18 - - 1.52(38.6) 0.87(22.1) 0.56(14.2) 0.75(19.1)
2K6 2K6C Standard Buna-N Yes 1/4 6.3 - - 9/16-18 1.66(42.2) 1.01(25.7) 0.70(17.8) 0.88(22.4)
2K6143 2K6C143 FKM Yes 1/4 6.3 - - 9/16-18 1.66(42.2) 1.01(25.7) 0.70(17.8) 0.88(22.4)
2K6192 - EPDM† Yes 1/4 6.3 - - 9/16-18 1.66(42.2) 1.01(25.7) 0.70(17.8) 0.88(22.4)
2K6VAA - Standard Buna-N No 1/4 6.3 - - 9/16-18 1.66(42.2) 1.01(25.7) 0.70(17.8) 0.88(22.4)
3K21 3K21C Standard Buna-N Yes 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21115 - PTFE Yes 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21118 - Neoprene Yes 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21143 3K21C143 FKM Yes 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21146 - Special Buna-N‡ Yes 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21192 3K21C192 EPDM† Yes 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21NV - Standard Buna-N No 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21VAA 3K21CVAA Standard Buna-N No 3/8 10 3/8-18 - - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21BS - Standard Buna-N Yes 3/8 10 - 3/8-19 - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21BS115 - PTFE Yes 3/8 10 - 3/8-19 - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21BS118 - Neoprene Yes 3/8 10 - 3/8-19 - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21BS143 - FKM Yes 3/8 10 - 3/8-19 - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21BS192 - EPDM† Yes 3/8 10 - 3/8-19 - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21BS236 - EPDM† Yes 3/8 10 - 3/8-19 - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K21BSVAA - Standard Buna-N No 3/8 10 - 3/8-19 - 1.76(44.7) 1.01(25.7) 0.61(15.5) 0.88(22.4)
3K8 3K8C Standard Buna-N Yes 3/8 10 - - 3/4-16 1.94(49.3) 1.15(29.2) 0.79(20.1) 1.00(25.4)
3K8143 3K8C143 FKM Yes 3/8 10 - - 3/4-16 1.94(49.3) 1.15(29.2) 0.79(20.1) 1.00(25.4)
3K8VAA - Standard Buna-N No 3/8 10 - - 3/4-16 1.94(49.3) 1.15(29.2) 0.79(20.1) 1.00(25.4)
4KP26 4KP26 Standard Buna-N Yes 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
4KP26115 - PTFE Yes 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
4KP26118 - Neoprene Yes 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
4KP26143 - FKM Yes 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
4KP26146 - Special Buna-N‡ Yes 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
4KP26192 - EPDM† Yes 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
4KP26236 - EPDM† Yes 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
4KP26NV - Standard Buna-N No 1/2 12.5 1/2-14 - - 2.03(51.6) 1.30(33.0) 0.76(19.3) 1.13(28.7)
Danfoss (Eaton - Aeroquip)

Danfoss (Eaton - Aeroquip)

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