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  • B3K21 Eaton Hanson HK 1-8 Series Male Plug - Female 3/8-18 NPTF VALVED - ISO 7241-1-B Interchange Brass Quick Disconnect - Standard Buna-N Seal replaces FD45-1086-06-06
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B3K21 Eaton Hanson HK 1-8 Series Male Plug - Female 3/8-18 NPTF VALVED - ISO 7241-1-B Interchange Brass Quick Disconnect - Standard Buna-N Seal replaces FD45-1086-06-06

SKU
B3K21 Eaton
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$7.99

PRODUCT DESCRIPTION

Eaton HK 1-8 Series - ISO 7241-1 B Interchange - Plugs (Male) - Brass
 
Eaton's HK brass is a general purpose industrial interchange coupling available in valved or non-valved designs, offered in brass for excelllent corrosion resistance in rugged applications where stainless steel is unacceptable. The HK Series features a ball latch mechanism with automatic self-sealing poppet valves.

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 / Chemical
  • Hydraulic Tool / Oil and Gas
  • General Industry / Transportation
  • Construction / Food and Beverage
  • Fluid Transfer / Trucks
  • Nuclear
Features: Meets dimensional
requirements to ISO
Standard 7241-1 Series B		 303/316 Stainless Steel construction
for greater corrosion
resistance and fluid compatibility		 Self-sealing poppet valve
design provides excellent
high and low pressure sealing		 Standard body
material:
303 or 316 Stainless Steel		 Standard seal material:
Buna-N

Seal options available:
PTFE, Neoprene,
EPDM, FKM or Kalrez®
Seal Elastomer Data
Elastomer Buna-N Neoprene EPDM
**not compatible with
mineral-based greases or oils		 FKM
(Fluorocarbon)		 PTFE Kalrez®
Application
Specification		 None None None MIL-R-25897 Contact Eaton for additional information Contact Eaton for additional information
Max. Operation
Temperature Range		 -40°C to +121°C
40°F to +250°F		 -54°C to +100°C
-65°F to +212°F		 -54°C to +149°C
-65°F to +300°F		 -29°C to +204°C
-15°F to +400°F		 Contact Eaton for additional information Contact Eaton for additional information
**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 4.4 207 3000 3 0.8 0.6 0.5
2HK 1/4 6.3 5.9 186 2700 12 3 1.2 0.9
3HK 3/8 10 7.8 152 2200 23 6 2.9 2.1
4HK 1/2 12.5 10 155 2250 45 12 3.6 3.5
6HK 3/4 20 17 138 2000 100 26 11.5 9.3
8HK 1 25 19.6 103 1500 189 50 18.0 16.9
10HK 1 1/4** - 26.7 83 1200 288 76 48.0 48.0
12HK 1 1/2 40 35.1 104 1500 375 99 91.3 91.3
20HK 2 1/2 50 46 49 700 757 200 209.9 209.9
*For questions related to vacuum please contact Eaton
**No ISO Standard available for the 10HK

NV = No Valve | VAA = Valve Actuator Assembly | BV = Bleeder Valve (Plugs Only)
Part
Number		 Seal
Elastomer		 Valved Body Size ISO Size Thread Size (Female) Dimensions
in mm NPTF BSPP C D E Hex
in
(mm)		 in
(mm)		 in
(mm)		 in
(mm)
B1K11 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)
B1K11118 Neoprene Yes 1/8 5 1/8-27 - 1.26
(32.0)		 0.65
(16.5)		 0.44
(11.2)		 0.56
(14.2)
B1K11143 FKM Yes 1/8 5 1/8-27 - 1.26
(32.0)		 0.65
(16.5)		 0.44
(11.2)		 0.56
(14.2)
B1K11192 EPDM† Yes 1/8 5 1/8-27 - 1.26
(32.0)		 0.65
(16.5)		 0.44
(11.2)		 0.56
(14.2)
B1K11BS Standard
Buna-N		 Yes 1/8 5 - 1/8-28 1.26
(32.0)		 0.65
(16.5)		 0.44
(11.2)		 0.56
(14.2)
B1K11NV 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)
 
B2K16 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)
B2K16115 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)
B2K16118 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)
B2K16143 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)
B2K16146 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)
B2K16192 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)
B2K16236 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)
B2K16BS 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)
B2K16BS115 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)
B2K16BS118 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)
B2K16BS143 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)
B2K16BS146 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)
B2K16BS192 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)
B2K16BSVAA 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)
B2K16BSVB 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)
B2K16NV 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)
B2K16VAA 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)
B2K16VB 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)
 
B3K21 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)
B3K21115 PTFE Yes 3/8 10 3/8-18 - 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21118 Neoprene Yes 3/8 10 3/8-18 - 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21143 FKM Yes 3/8 10 3/8-18 - 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21146 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)
B3K21192 EPDM† Yes 3/8 10 3/8-18 - 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21236 EPDM† Yes 3/8 10 3/8-18 - 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21BS 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)
B3K21BS115 PTFE Yes 3/8 10 - 3/8-19 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21BS118 Neoprene Yes 3/8 10 - 3/8-19 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21BS143 FKM Yes 3/8 10 - 3/8-19 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21BS146 Special
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)
B3K21BS192 EPDM† Yes 3/8 10 - 3/8-19 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21BS236 EPDM† Yes 3/8 10 - 3/8-19 1.76
(44.7)		 1.01
(25.7)		 0.61
(15.5)		 0.88
(22.4)
B3K21BSVAA 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)
B3K21NV 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)
 
B4KP26 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)
B4KP26115 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)
B4KP26118 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)
B4KP26143 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)
B4KP26146 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)
B4KP26192 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)
B4KP26236 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)
B4KP26BS 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)
B4KP26BS115 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)
B4KP26BS118 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)
B4KP26BS143 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)
B4KP26BS146 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)
B4KP26BS192 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)
B4KP26BS236 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)
B4KP26BSVAA 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)
B4KP26NV 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)
B4KP26VAA 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)
 
B6KP31 Standard
Buna-N		 Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31115 PTFE Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31118 Neoprene Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31143 FKM Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31146 Special
Buna-N‡		 Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31192 EPDM† Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31236 EPDM† Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BS Standard
Buna-N		 Yes 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BS115 PTFE Yes 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BS118 Neoprene Yes 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BS143 FKM Yes 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BS146 Special
Buna-N‡		 Yes 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BS192 EPDM† Yes 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BS236 EPDM† Yes 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31BSVAA Standard
Buna-N		 No 3/4 20 - 3/4-14 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31NV Standard
Buna-N		 No 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31VAA Standard
Buna-N		 No 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
B6KP31VB Standard
Buna-N		 Yes 3/4 20 3/4-14 - 2.36
(59.9)		 1.52
(38.6)		 0.71
(18.0)		 1.31
(33.3)
 
B8KP36 Standard
Buna-N		 Yes 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36115 PTFE Yes 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36118 Neoprene Yes 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36143 FKM Yes 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36146 Special
Buna-N‡		 Yes 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36192 EPDM† Yes 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36236 EPDM† Yes 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36BS Standard
Buna-N		 Yes 1 25 - 1-11 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36BS115 PTFE Yes 1 25 - 1-11 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36BS118 Neoprene Yes 1 25 - 1-11 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36BS143 FKM Yes 1 25 - 1-11 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36BS192 EPDM† Yes 1 25 - 1-11 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36BS235 Kalrez Yes 1 25 - 1-11 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36BS236 EPDM† Yes 1 25 - 1-11 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36NV Standard
Buna-N		 No 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
B8KP36VAA Standard
Buna-N		 No 1 25 1-11 1/2 - 2.85
(72.4)		 1.88
(47.8)		 0.97
(24.6)		 1.63
(41.4)
† EPDM not compatible with mineral-based greases or oils
‡ Special Buna-N for some Petroleum Fuels

C=Overall Length, D=Maximum Diameter, E=Exposed Length when Connected
To obtain connected length of coupling, add dimensions A (Fig. 1 Female Socket) and E (Fig. 3) together.
More Information
Part Number B3K21
Location Each
Series HK 1-8 Series
Material Brass
Body Size 3/8
Seal Material Buna-N
Thread 3/8-18
Coupling Type Female NPTF
End Type Plug
Other Features Valved
Gender Female
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