---
product_id: 146392844
title: "YC-XB4BA21 22mm Flush Push Button Momentary Switch Action 1 N.O. 1 N.C. Contact Blocks replacement for XB4BA21 (Black)"
brand: "yuco"
price: "$42.88"
currency: USD
in_stock: true
category: "Industrial"
url: https://www.desertcart.us/products/146392844-yc-xb4ba21-22mm-flush-push-button-momentary-switch-action-1
store_origin: US
region: United States of America
---

# YC-XB4BA21 22mm Flush Push Button Momentary Switch Action 1 N.O. 1 N.C. Contact Blocks replacement for XB4BA21 (Black)

**Brand:** yuco
**Price:** $42.88
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** YC-XB4BA21 22mm Flush Push Button Momentary Switch Action 1 N.O. 1 N.C. Contact Blocks replacement for XB4BA21 (Black) by yuco
- **How much does it cost?** $42.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/146392844-yc-xb4ba21-22mm-flush-push-button-momentary-switch-action-1)

## Best For

- yuco enthusiasts

## Why This Product

- Trusted yuco brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Color:Black
            
          
          
        
      
    
  


        
        
     
	       
     

     
                              
     
       	       
        
         
        
        	
        	
        		
        			22mm Flush Push Button Momentary Switch Action 1 Normally Open 1 Normally Closed Contact Blocks Included replacement for XB4BA

## Features

- 22mm
- Black Flush Cap
- Momentary Switch Action
- 1 N.O. 1 N.C. Contact Blocks Included
- Replaces XB4BA21
- ›See more product details

## Images

![YC-XB4BA21 22mm Flush Push Button Momentary Switch Action 1 N.O. 1 N.C. Contact Blocks replacement for XB4BA21 (Black) - Image 1](https://images-na.ssl-images-amazon.com/images/I/41qb2Jo-6PL.jpg)
![YC-XB4BA21 22mm Flush Push Button Momentary Switch Action 1 N.O. 1 N.C. Contact Blocks replacement for XB4BA21 (Black) - Image 2](https://images-na.ssl-images-amazon.com/images/I/518lGt%2BhCIL.jpg)
![YC-XB4BA21 22mm Flush Push Button Momentary Switch Action 1 N.O. 1 N.C. Contact Blocks replacement for XB4BA21 (Black) - Image 3](https://images-na.ssl-images-amazon.com/images/I/51X%2BXqNxV8L.jpg)

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**Shop now:** [https://www.desertcart.us/products/146392844-yc-xb4ba21-22mm-flush-push-button-momentary-switch-action-1](https://www.desertcart.us/products/146392844-yc-xb4ba21-22mm-flush-push-button-momentary-switch-action-1)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-11*