Skip to content
⚠️ Please expect processing delays as we recover from a System Change. ⚠️
Please expect processing delays as we recover from a System Change.

B20K56 Eaton Hanson HK 10/12/20 Series Male Plug - Female 2 1/2-8 NPTF VALVED - ISO 7241-1-B Interchange Brass Quick Disconnect - Standard Buna-N Seal

Save $59.54 Save $59.54
Original price $595.41
Original price $595.41 - Original price $595.41
Original price $595.41
Current price $535.87
$535.87 - $535.87
Current price $535.87

Eaton HK 10/12/20 Series - ISO 7241-1 B Interchange - Plugs (Male) - Brass

Can I get a discount on my purchase?

Our listed prices are our lowest possible price with current costing but when volumes/value are high enough sometimes we can pass on a discount from the manufacturer.

Some products have predefined quantity discounts that will apply automatically, those pages have a table near the price describing the discount teirs.

If you feel your purchase quantity of a particular product is very large and want us to investigate with the manufacturer please feel free to Contact Us.

What if my item is out of stock?

All customers get an email regarding the shipping time frame of their purchase, usually within the business day. If your item is in stock we will ship within 1 business day, otherwise, the email will contain a lead time. If you do not receive this email, we recommend checking your email's spam folder. If you have any questions at that point please do not hesitate to Contact Us or chat below!

Can I get free shipping?

Shipping will calculate as free instantly if your order value exceeds $5000.

Some exceptions apply.

Free Freight is only available for the Contiguous USA.

Specifications for SKU: B20K56 Eaton
Shape (Orientation): Straight
Material(s): 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)
B10K41* Standard Buna-N Yes 1 1/4 - 1 1/4-11 1/2 - 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B10K41143* FKM Yes 1 1/4 - 1 1/4-11 1/2 - 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B10K41192* EPDM† Yes 1 1/4 - 1 1/4-11 1/2 - 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B10K41BS* Standard Buna-N Yes 1 1/4 - - 1 1/4-11 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B10K41BS192* EPDM† Yes 1 1/4 - - 1 1/4-11 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B10K41NV* Standard Buna-N No 1 1/4 - 1 1/4-11 1/2 - 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B10K41NV143* FKM No 1 1/4 - 1 1/4-11 1/2 - 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B10K41NV192* EPDM† No 1 1/4 - 1 1/4-11 1/2 - 4.25(108.0) 2.74(69.6) 2.33(59.2) 2.38(60.5)
B12K41 Standard Buna-N Yes 1 1/2 40 1 1/4-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K41143 FKM Yes 1 1/2 40 1 1/4-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K41146 Special Buna-N‡ Yes 1 1/2 40 1 1/4-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K41192 EPDM† Yes 1 1/2 40 1 1/4-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K41VAA Standard Buna-N No 1 1/2 40 1 1/4-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K41BS Standard Buna-N Yes 1 1/2 40 - 1 1/4-11 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K46 Standard Buna-N Yes 1 1/2 40 1 1/2-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K46143 FKM Yes 1 1/2 40 1 1/2-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K46146 Special Buna-N‡ Yes 1 1/2 40 1 1/2-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K46192 EPDM† Yes 1 1/2 40 1 1/2-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K46BS Standard Buna-N Yes 1 1/2 40 - 1 1/2-11 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K46NV Standard Buna-N No 1 1/2 40 1 1/2-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B12K46VAA Standard Buna-N No 1 1/2 40 1 1/2-11 1/2 - 4.76(120.9) 2.74(69.6) 2.67(67.8) 2.38(60.5)
B20K51 Standard Buna-N Yes 2 1/2 50 2-11 1/2 - 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K51143 FKM Yes 2 1/2 50 2-11 1/2 - 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K51146 Special Buna-N‡ Yes 2 1/2 50 2-11 1/2 - 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K51192 EPDM† Yes 2 1/2 50 2-11 1/2 - 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K51BS Standard Buna-N Yes 2 1/2 50 - 2-11 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K51NV Standard Buna-N No 2 1/2 50 2-11 1/2 - 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K51VAA Standard Buna-N No 2 1/2 50 2-11 1/2 - 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K51VAA143 FKM No 2 1/2 50 2-11 1/2 - 5.49(139.4) 4.33(110.0) 2.97(75.4) 3.75(95.3)
B20K56 Standard Buna-N Yes 2 1/2 50 2 1/2-8 - 6.08(154.4) 4.33(110.0) 3.56(90.4) 3.75(95.3)
B20K56143 FKM Yes 2 1/2 50 2 1/2-8 - 6.08(154.4) 4.33(110.0) 3.56(90.4) 3.75(95.3)
B20K56192 EPDM† Yes 2 1/2 50 2 1/2-8 - 6.08(154.4) 4.33(110.0) 3.56(90.4) 3.75(95.3)
B20K56NV143 FKM No 2 1/2 50 2 1/2-8 - 6.08(154.4) 4.33(110.0) 3.56(90.4) 3.75(95.3)
B20K56BS Standard Buna-N Yes 2 1/2 60 - 2 1/2-11 6.08(154.4) 4.33(110.0) 3.56(90.4) 3.75(95.3)
B20K61 Standard Buna-N Yes 2 1/2 50 3-8 - 6.94(176.3) 4.62(117.3) 4.42(112.3) 4.00(101.6)
B20K61143 FKM Yes 2 1/2 60 3-8 - 6.94(176.3) 4.62(117.3) 4.42(112.3) 4.00(101.6)
B20K61192 EPDM† Yes 2 1/2 60 3-8 - 6.94(176.3) 4.62(117.3) 4.42(112.3) 4.00(101.6)
B20K61BS Standard Buna-N Yes 2 1/2 650 - 3-11 6.94(176.3) 4.62(117.3) 4.42(112.3) 4.00(101.6)
B20K61VAA Standard Buna-N No 2 1/2 50 3-8 - 6.94(176.3) 4.62(117.3) 4.42(112.3) 4.00(101.6)
EPDM not compatible with mineral-based greases or oils ‡ Special Buna-N for some Petroleum Fuels * ISO 7241-1 Series B does not include 1-¼ inch body size couplings; therefore, Series 10HK is not covered by this standard 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. 4) together.
Danfoss (Eaton - Aeroquip)

Danfoss (Eaton - Aeroquip)

Danfoss is a global technology leader in power management solutions that make electrical, hydraulic and mechanical power operate more efficiently, reliably, safely and sustainably. Danfoss hydraulic pumps, motors, transmissions, valves, cylinders, controls, hose and fittings offer a unique combination of proven technology and innovative design that translates directly into reliable performance and enhanced uptime.

Shop Parts by Danfoss (Eaton - Aeroquip)

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare