# Extension Spring

**Manufacturer:** Spec  
**MPN:** `E12501154000S`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Spec |
| Manufacturer name | Spec |
| Manufacturer | Spec |
| CategoryId | 7611 |
| CategoryIdL1 | 27 |
| CategoryIdL2 | 4558 |
| CategoryIdL3 | 7611 |
| CategoryL1 | Hardware & Building Materials |
| CategoryL2 | Springs |
| CategoryL3 | Extension Springs |
| DimensionUnit | inch |
| GraingerSku | 781V12 |
| UPC | None |
| UnitOfMeasure | PK |
| Weight | 0.17 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | CN |
| height | 1.25 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 4 |
| moq | 1 |
| MPN | E12501154000S |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G001797630 |
| snippet | Extension Spring |
| tierMinQty1 | 1 |
| tierPrice1 | 28.75 |
| url | https://www.zoro.com/spec-extension-spring-pk2-e12501154000s/i/G001797630/ |
| width | 1.25 |
| Overall Length | 4 in |
| Outside Dia | 1.25 in |
| Wire Dia | 0.115 in |
| Type | High Precision |
| Material | 302 Stainless Steel |
| Spring Rate (Lbs /In ) | 10.08 lb/in |
| Item | Extension Spring |
| Deflection @ Load | 3.32 in |
| Initial Tension (Lbs ) | 3.3 lb |
| Load (Lbs ) | 36.68 lb |
| Meets/Exceeds | ASTM-A313 and AMS-5688 |
| End Type | Full Twist Loops |
| Finish | Passivated |
| Package Quantity | 2 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G001797630 | 28.75 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/181000000/181002500/part_--E12501154000S---Spec--9adff4b354.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp