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Product Specifications:
| Item | Extension Spring |
| Color | Gray |
| Elastic Limit | 2 1/20" |
| End Type | Crossover Center Loop |
| Extended Length | 6 3/32" |
| Finish | Plain |
| Free Length | 4" |
| Grade | Grade 302 |
| Hook Length | 5/16" |
| Initial Tension | 1.6 lbf. |
| Initial Tension (lbs.) | 1.39 |
| Load | 15.29 lbs. |
| Material | Stainless Steel |
| Outside Diameter | 0.36" |
| Overall Length | 4" |
| Product Type | Extension Spring |
| Spring Rate | 6.69 lbs.-in. |
| Standards | Astm A313 |
| System Of Measurement | Imperial |
| Total Active Coils | 60 |
| Type | Ultra Precision |
| Wire Diameter | 0.055" |
Shipping Info:
| Ship weight (kg) | 0.05 |
| Ship height (cm) | 1.02 |
| Ship length (cm) | 11.18 |
| Ship width (cm) | 5.08 |
| HS code | 7320205045 |
| Country of Origin | US |
Product Variants
| Model | End Type | Material | Load | Spring Rate | Outside Dia. | Wire Dia. | Initial Tension | Deflection @ Load | Pkg. Qty. | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1NAR8 | Crossover Center Loop | Spring Wire | 2.6 lbs. | 10.5 lbs.-in. | 0.18" | 0.022" | 0.2 lbf. | 0.23" | 3 | €9.71 | |
| 1NAR9 | Crossover Center Loop | Spring Wire | - | 2.2 lbs.-in. | 0.18" | 0.018" | 0.14 lbf. | - | 3 | €9.70 | |
| 1NAT1 | Crossover Center Loop | Spring Wire | 2.6 lbs. | 6.3 lbs.-in. | 0.18" | 0.022" | 0.2 lbf. | 0.39" | 3 | €9.70 | |
| 1NAT2 | Full Twist Loop | Carbon Steel | 5.82 lbs. | - | 0.18" | 0.029" | 0.52 lbs. | 1/5" | 3 | €9.61 | |
| 1NAT3 | Crossover Center Loop | Spring Wire | 1.18 lbs. | 1.6 lbs.-in. | - | 0.018" | 0.11 lbf. | 0.66" | 3 | €9.59 | |
| 1NAT4 | Crossover Center Loop | Spring Wire | 4.5 lbs. | 16.5 lbs.-in. | - | 0.029" | 0.4 lbf. | - | 3 | €9.70 | |
| 1NAT5 | Full Twist Loop | Carbon Steel | 8.7 lbs. | - | - | - | 0.8 lbs. | - | 3 | €9.70 |
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APPROVED VENDOR 1NBP4 Extension Spring Ultra Precision 4 Overall Length
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