# Spec

**Manufacturer:** Spec  
**MPN:** `T42990`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Spec |
| Manufacturer name | Spec |
| Manufacturer | Spec |
| DimensionUnit | inch |
| GraingerSku | 782EW7 |
| Extra Product Name | Spec |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 0.34 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | CN |
| extendedLead | 17 |
| extendedQty | -2 |
| height | 1.58 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 5.75 |
| moq | 1 |
| MPN | T42990 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G301798016 |
| tierMinQty1 | 1 |
| tierPrice1 | 13.87 |
| url | https://www.zoro.com/spec-metric-extension-spring-stainless-steel-t42990/i/G301798016/ |
| width | 1.58 |
| Type | High Precision |
| Material | Stainless Steel |
| Overall Length | 146 mm |
| Outside Dia | 40 mm |
| Wire Dia | 3.6 mm |
| Spring Rate (Lbs /In ) | 1.18 N/mm |
| End Type | Full Twist Loops |
| Deflection @ Load | 181.99 mm |
| Load (Lbs ) | 56.93 lb |
| Item | Metric Extension Spring |
| Meets/Exceeds | DIN-17224; JIS-G4314; AMS-5688 |
| Initial Tension (Lbs ) | 8.53 lb |
| Finish | Plain |
| Country of Origin (subject to change) | China |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G301798016 | 13.87 | 1 | None | 1 |
| Grainger | 782EW7 | 20.79 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/154000000/154191500/part_--T42990---Spec--d34123875a.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp