# Spec

**Manufacturer:** Spec  
**MPN:** `E03000551120S`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Spec |
| Manufacturer name | Spec |
| Manufacturer | Spec |
| DimensionUnit | inch |
| GraingerSku | 781T50 |
| Extra Product Name | Spec |
| UnitOfMeasure | PK |
| Weight | 0.01 |
| WeightUnit | lbs |
| atoms | 5 |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | CN |
| extendedLead | 17 |
| extendedQty | -2 |
| height | 0.3 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1.12 |
| moq | 1 |
| MPN | E03000551120S |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G601797450 |
| tierMinQty1 | 1 |
| tierPrice1 | 12.66 |
| url | https://www.zoro.com/spec-extension-spring-stainless-steel-pk5-e03000551120s/i/G601797450/ |
| width | 0.3 |
| Type | High Precision |
| Material | 302 Stainless Steel |
| Overall Length | 1 3/25 in |
| Outside Dia | 0.3 in |
| Wire Dia | 0.055 in |
| Spring Rate (Lbs /In ) | 63.31 lb/in |
| Deflection @ Load | 0.26 in |
| Load (Lbs ) | 17.75 lb |
| Meets/Exceeds | ASTM-A313 and AMS-5688 |
| Finish | Passivated |
| Item | Extension Spring |
| End Type | Full Twist Loops |
| Initial Tension (Lbs ) | 1.6 lb |
| Country of Origin (subject to change) | China |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G601797450 | 12.66 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/255000000/255347500/part_--E03000551120S---Spec--57eef87c77.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp