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Sanwa OBSF 30mm Pushbuttons Dark Red


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$2.95 (USD)
0.36 Ounces
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  • Product Description

    The SANWA OBSF series is considered the standard in high-quality Japanese arcade and commercial joystick pushbuttons. These buttons are compatible with the MadCatz line of FightSticks, Qanba FightSicks and Hori Fightsticks.  These buttons are specifically for custom joysticks that use a metal control panel.

    Sanwa's 30mm button snap right into most configurations, and offer the best reaction time, smoothest and quietest of any button.  The buttons are available in a variety of colors for great customization. Additionally, you can swap out the button plungers for even more customization.

    Bundle with Silencer 30mm Foam Washers and Save!

    Silencer Foam Washer Silencer installed in Sanwa pushbutton
    Silencer installed into Seimitsu screwbutton Silencer installed in Seimitsu PS-15 Low Profile (tabs snipped to fit)

    Silencer is our 1mm-thick foam washer that helps to dampen the loud sounds common with tapping on the button plunger.  It conforms to the internal housing of many Sanwa or Seimitsu-style 30mm pushbuttons.

    Known compatibility:


    Click "Add to Order" to save 40% off retail of a Silencer foam washer for each button you purchase. 

    Silencer Installation

    installing the Silencer foam pads into a Sanwa or Seimitsu pushbutton is straightforward.  Place the washer - plastic film side down - into the button housing.  Align the small tabs so that they stick out of the holes on each side of the housing.  For Seimitsu PS-15, and Hori Hayabusa low profile pushbuttons, snip the tabs off with scissors and place into the housing.

    24 vs 30mm

    When processing orders, a frequent mistake we found among new players is choosing the wrong size for action buttons, such as punch and kick.

    Within the fighting game genre, Japanese arcade buttons commonly consist of two diameter sizes: 24 millimeter and 30 milllimeter (mm). In most configurations, 30mm represents your action button.  These are front facing, appearing most prominent on your Fightstick control panel.  Option button, such as "Start", "Select", or more recently "Option", "Touch", or "Share" are usually 24mm.

    UPDATE: Owners of Neo Geo AES Joysticks will need 24mm pushbuttons instead of 30mm (Thanks SRK's DEZALB)

    Below is a visual representation of a common Fightstick control panel.  Throughout this article, we will mark 24mm in green, and 30mm in Orange.

    Common joystick configuration

    Checking the Proper Size

    button-30mm.pngAnother way that players can misinterpret the pushbutton size is by measuring the pushbutton plunger.  Have a look at the diagram at right.

    The plunger - the part that you press down to represent an input - is 25mm or a bit smaller in most 30mm pushbuttons.  Often this leads to the conclusion that one needs a 24mm button and not 30mm.

    Similarly measuring the button rim can lead to confusion, as it is intentionally larger than the button hole it is placed in.  You don't want to use these measurements.  Instead, review the button housing diameter, or the hole the button will be placed in.  You can do this with a caliper - a digital caliper is often quite helpful for this and other arcade-related projects.

    Control Panel Configuration

    Most Fightsticks from MadCatz, Hori, Qanba, and similar will use these two sizes.  How the buttons are used will depend on the model joystick that you own. Over time, we'll provide example configurations for specific popular Fightstick models and arcade cabinets using the color key for 24mm (green) and 30mm (orange).  We'll also expand the key for future models if another size is introduced, and we offer for sale.


    24vs30mm Hitbox Example
    HRAP and Qanba Model Configuration
    MadCatz Model Configuration
    Qanba Q1 and Mayflash/Venom Model Configuration

  • Product Reviews


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    1. Great for Neo Geo ASP

      Got this to replace the stock buttons on my Neo Geo Arcade Stick Pro. The Sanwa buttons look better and feel better. They're a breeze to install, no soldering needed. on Sep 29th 2020

    2. Feather touch, better than expected

      I used these Sanwa 30mm buttons in a Mayflash MF002 v2 upgrade project. The default buttons weren't bad...until I replaced them, and I was really surprised at the difference. Feather touch, great response -- they just feel amazing. Very much worth the upgrade for a name brand.

      Dark red is a richer, fire-engine red than Vermillion, which is a little more into a red/orange. If you're into color composition, the dark red has more blue in it and vermillion has more yellow in the mix.
      on May 5th 2020

    3. Great buttons, durable and sensitive

      Personally, I'm a fella who likes his buttons sensitive and solid feeling. These babies meet both of the desires with ease. They don't feel cheap, and you'll have a hard time breaking these things. Their sensitivity is perfect for people who are looking for something that minimizes button travel time. on Nov 8th 2019

    4. Good Buttons

      Looks sweet and feels good. Can't go wrong for a begginer looking to build a stick. on Jun 28th 2019

    5. Great feel

      Feels great to use, durable and responsive. Must-buy if your stick doesn't come with them already. on May 27th 2019

    6. Great feel and responsiveness

      I bought these for my 8Bitdo N30 Arcade Stick and it's a huge difference in feel. Very responsive. I only wish they were clickier but still, great feel and function. on May 14th 2019

    7. These buttons are awesome!

      Order this for my Hori RAP 4 kai and I find them easy to install also love the glossy material feel to them unlike the Hayabusa buttons matte finish which I wasn't crazy about and I will recommend it! on Mar 6th 2018

    8. Easy to install

      Bought these for my Hori RAPV also purchase 30mm yellow plunger to work with my customization I was doing, they work great and easy to install. on Jan 16th 2018

    9. Loving these buttons

      I purchased these buttons to mod by Hori Rap4 and I simply love them. Compared to the Hyabusa buttons, while Hayabusa buttons arent that bad, I heavily prefer these Sanwa buttons. They are very responsive and I very much love the glossy feel compared to the matte feel of the Hayabusa buttons.

      Comparing out of the way the buttons themselves are just simply great and I would highly recommend them!
      on Nov 28th 2017

    10. Noticeable difference

      I am fairly new to fightsticks and I believed that buying buttons were just for aesthetics. Until recently I decided on trying out what all the fuss was about. Two words:" game" "changer"!!! The imputs are cleaner and the responsiveness is noticeable ( it feels sturdy not hollow, and pops back up fast). I'm happy to say that these buttons are worth it and to anyone else who is new to try them out!! on Aug 22nd 2017