# B-21291

**Manufacturer:** ALLEN BRADLEY  
**MPN:** `B-21291`

The Allen Bradley B-21291 base is a metal component designed for use with limit switches. It features a 1/2"-fine NPT thread.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | ALLEN BRADLEY |
| Manufacturer name | ALLEN BRADLEY |
| Manufacturer | ALLEN BRADLEY, Allen Bradley |
| moq | 1 |
| MPN | B-21291 |
| multiple | 1 |
| qtyInStock | 2 |
| SKU | B-21291 |
| ASIN | B0813S5N3G |
| AdultProduct | False |
| Asin | B0813S5N3G |
| Autographed | False |
| Brand | Allen-Bradley |
| Bullet_point | NPT Thread: 1/2"-Fine |
| ClassificationId | 5739467011 |
| DisplayName | Limit Switches |
| Height | 375, 4.0, 4.00, 56, 768 |
| ItemClassification | BASE_PRODUCT |
| ItemName | ALLEN BRADLEY B-21291 Base, Metal for Limit Switch |
| Item_name | ALLEN BRADLEY B-21291 Base, Metal for Limit Switch |
| Item_type_keyword | electronic-component-limit-switches |
| Item_weight | 0.38 |
| Keyword | SWITCH |
| Label | Allen Bradley |
| Length | 2.0, 2.00 |
| Link | https://m.media-amazon.com/images/I/41-cpaFefwL._SL75_.jpg, https://m.media-amazon.com/images/I/41-cpaFefwL.jpg, https://m.media-amazon.com/images/I/41PmDb5I91L._SL75_.jpg, https://m.media-amazon.com/ |
| Material | Metal |
| MaterialType | Metal |
| Memorabilia | False |
| Mounting_type | Surface Mount |
| Mpns | B-21291 |
| NumberOfItems | 1 |
| Number_of_items | 1 |
| PartNumber | B-21291 |
| Part_number | B-21291 |
| ProductGroup | BISS Basic |
| ProductType | ELECTRONIC_SWITCH |
| ProductTypeName | ELECTRONIC_SWITCH |
| Product_description | PN: B-21291 <br />B21291 <br /><br />NPT Thread: 1/2"-Fine<br />B-21291B21291 <br />MC28 <br /> <br /> |
| Product_site_launch_date | 2019-11-06T14:38:49.975Z |
| Publisher | Allen Bradley |
| StrippedMpns | B21291 |
| Studio | Allen Bradley |
| Switch_type | Limit Switch |
| Title | ALLEN BRADLEY B-21291 Base, Metal for Limit Switch |
| TradeInEligible | False |
| Type | Count |
| URL | https://m.media-amazon.com/images/I/41PmDb5I91L._SL75_.jpg |
| Unit | inches, pounds |
| Unit_count | 1.0 |
| Units | inches, pixels, pounds |
| Variant | MAIN, PT01, PT02, PT03 |
| WebsiteDisplayGroup | biss_basic_display_on_website |
| WebsiteDisplayGroupName | BISS Basic |
| Weight | 0.38 |
| Width | 1024, 4.0, 4.00, 500, 75 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Radwell | B-21291 |  |  | 2 | 1 |

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Structured data: `/python/html6/product/500/155000000/155342500/part_--B21291---ALLENBRADLEY--abd1ce9cf1.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp