# Spec

**Manufacturer:** Spec  
**MPN:** `E11251055500M`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Spec |
| Manufacturer name | Spec |
| Manufacturer | Spec |
| DimensionUnit | inch |
| GraingerSku | 781PG0 |
| Extra Product Name | Spec |
| UnitOfMeasure | EA |
| Weight | 0.19 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | CN |
| extendedLead | 17 |
| extendedQty | -2 |
| height | 1.13 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 5.5 |
| moq | 1 |
| MPN | E11251055500M |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G201916879 |
| tierMinQty1 | 1 |
| tierPrice1 | 10.37 |
| url | https://www.zoro.com/spec-extension-spring-music-wire-e11251055500m/i/G201916879/ |
| width | 1.13 |
| Type | High Precision |
| Material | Music Wire |
| Overall Length | 5 1/2 in |
| Outside Dia | 1.125 in |
| Wire Dia | 0.105 in |
| Spring Rate (Lbs /In ) | 5.1 lb/in |
| Deflection @ Load | 6.73 in |
| Load (Lbs ) | 37.8 lb |
| Finish | Oil |
| End Type | Full Twist Loops |
| Initial Tension (Lbs ) | 3.4 lb |
| Meets/Exceeds | ASTM-A228 and AMS-5112 |
| Item | Extension Spring |
| Country of Origin (subject to change) | China |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G201916879 | 10.37 | 1 | None | 1 |
| Grainger | 781PG0 | 10.39 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/35000000/35163500/part_--E11251055500M---Spec--65daa8dffa.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp