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D-339N Compression spring is sold as a box of 12 pieces. The listed price is for the complete 12-piece box, not for a single spring.
A compact metric compression spring for precise replacement, repair, and design work where part number D-339N is the required match.
Technical highlights include material: EN 10270-1, wire diameter: 4.5 mm, outer diameter: 50 mm, free length: 299 mm, spring rate: 2.861 N/mm. Use the specification table below to verify the dimensions and performance data against your application before placing an order.
- Pack size: 12 pieces per box
- Price basis: price shown is for one box containing 12 springs
- Product type: Compression spring
- Best for: maintenance, replacement, prototyping, and specification-led purchasing
Technical specifications
| Article number | D-339N |
|---|---|
| Material | EN 10270-1 |
| Spring ends | Closed and ground |
| Wire diameter [d] | 4.5 mm |
| Inner coil diameter [Di] | - mm |
| Mean coil diameter [D] | 45.5 mm |
| Outer coil diameter [De] | 50 mm |
| Maximum mandrel diameter [Dd] | 39.7 mm |
| Minimum housing diameter [Dh] | 52 mm |
| Free length [L0] | 299 mm |
| Buckling length [Lk] | 204.7 mm |
| Max. static force [Fn] | 579.623 N |
| Min. static length [Ln] | 96.42 mm |
| Max. static deflection [sn] | 202.58 mm |
| Max. dynamic force [Fndyn] | 554.333 N |
| Min. dynamic length [Lndyn] | 105.26 mm |
| Max. dynamic stroke [shdyn] | 81.65 mm |
| Spring pitch [S] | 19 mm |
| Active coils [n] | 15.5 pc. |
| Total coils [nt] | - pc. |
| Spring rate [R] | 2.861 N/mm |
| Weight per spring | 314.4812 g |
Please check all measurements carefully before ordering. Spring performance can vary depending on installation conditions and application requirements.