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HomeTools & Hangar EquipmentLanding Gear ToolsHigh Pressure Strut CouplersSchrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIG
Schrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIG
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Schrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIGSchrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIGSchrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIG

Schrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIG

Part#: 005560099
Our Price: $23.37
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Country of Origin: USA
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The Schrader USA 556 is designed to inflate and deflate the struts on your aircraft. This high pressure Schrader strut coupler attaches to the strut valve directly via its built-in core depressor pin. Attach the Schrader valve coupler to the valve threads by hand or with a wrench to form a perfect seal at up to 3,000 psi. This product features easy installation and simple use, ideal for handymen of all skill levels. The sturdy high pressure Schrader valve includes a copper sealing washer for fast installation. Sealing washers may need to be replaced after multiple uses to ensure proper sealing on valve mouth. At SkyGeek, we carry a complete line of landing gear parts and servicing tools for your aircraft. The inexpensive Schrader charging connector 556 includes five-star customer reviews. The Schrader coupler is a product you can trust, selected by our Geeks and approved by customers across the globe.


  • Lockheed Martin Corporation: 717770007-009
  • NSN: 4820-00-245-7699
  • Naval Air Warfare Center: 520203-3
  • US Tank Automotive Command: 8687044
  • Overall Rating for Schrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIG
    (based on 10 reviews)
    10 Reviews
    100% (10)
    0% (0)
    0% (0)
    0% (0)
    0% (0)
    100% Recommend this product (10 of 10 responses)
    By Howard
    Ephrata, WA
    October 15, 2015
    Genuine Schrader High Pressure Coupler.
    I ordered and received a genuine Schrader valve of good quality. There were cheaper knock-offs available for less money but I wanted the best. Skygeek's web site showed clear photos and the order form was easy to use. I was happy to receive the exact valve I wanted, shipped where I needed and when I needed it. I couldn't ask for more than that.
    By Peter
    Page AZ
    February 4, 2014
    This is the right tool
    If you are servicing a light airplane strut this tool is essential the old brass goose neck tool lacks the features (Valve depressor) to do the job safely
    By Clark
    December 17, 2012
    Schrader valve
    Good quality item and was delivered on time
    ProsVery good quality
    By Skip
    September 20, 2012
    Schrader high pressure coupler.
    Great price, really fast delivery, well built and finished product.
    ProsDoes the job on my Bonanza.
    By Jaxon
    Indepencence, La.
    January 5, 2012
    Exactly the coupler needed to dry nitrogen charge the Z-axis hydraulic counterbalance on my Haas CNC Milling Machine. Fast shipping as well!!!!
    ProsAll Pros!!!
    By Matt
    New Zealand
    June 26, 2011
    great tool
    Fantastic nitrogen filling tool, very hard to find in New Zeland, Skygeek had in stock and shipped the next day, arrived in under a week, very pleased.
    By Tony
    Perth Australia
    May 11, 2011
    Different use
    Hi this Schrader air chuck has a new use, i am using it to re-charge the fluid suspension on a range of BMC vehicles namely Austin 1800, super quality valve, great dealing with the Sky Geek team.
    By josh
    Sydney, Australia
    April 26, 2011
    Schrader 556 High Pressure Coupler
    great product, great price, quick delivery
    By Joe
    Fairhope, AL
    April 1, 2011
    Adjusting Strut Pressur
    This coupler makes a very difficult job comparatively easy. Just be sure the valve compressor is backed out and screw on hand tight. Then screw in valve compressor and it is easy then to add or relieve pressure. Then the valve compressor is screwed out with no loss of pressure in strut. I use it for my tires as well.
    ConsIf the connection for the hose was only 1/4" NPT then an adapter would not be needed. I guess the 1/8" is more common for high pressure needs but my cessna does not require high pressure.
    By Patrice
    France Nice
    December 4, 2010
    mine d'or -
    votre site est une mine d'or . je n' ai pas trouvé de robinet de ce type en France merci encore "Your site is a goldmine. I 've found no such valve in France thank you again"

    Schrader 556 High Pressure Strut Coupler - 1/8" NPT Male - 3,000 PSIG
    Product Details
    UOM : Each
    Shipping Weight : 0.5 pounds
    Manufacturer P/N : 005560099
    UPC : 870366600998
    NSN : 4820-00-245-7699
    ECCN : EAR99
    Schedule B Code : 8481.90.9090
    Alt. P/Ns : 8687044 HF2014
    Disclaimer: While reasonable efforts have been made to ensure all information on this website is accurate, and Styles Logistics, Inc. do not assume responsibility for any errors or omissions. All specifications, illustrations, data and prices are subject to change without notice.
  • Schrader USA Number: 556
  • Fits Thread Size: .305-32
  • Air Line Connection: 1/8" NPT Male
  • Max. Pressure Rating (PSIG): 3,000
  • Configuration: Air line connection 90 degrees to axis of valve
  • Recommended Max. Torque To Valve Mouth*: 50 in.-lb.
  • Remarks: Has core depressor pin, copper sealing washer

    *It may be necessary to replace the sealing washers after a number of uses to insure sealing on valve mouth.

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