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Yes, we use the manufacturer part number after a three digit manufacturer code like SIE for Sierra.
After you find the part search the Sierra number using the search on our website.
In some cases a particular part may not be available from an aftermarket manufacturer and you may need to obtain the OEM (original equipment manufacturer) brand. If you do not find what you need in the parts finder please click the live help link or click here to email us and we will be glad to search other aftermarket options such as C.D.I. or even in some cases OEM parts or direct you to the right place to locate what you need.
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Attwood Gas Springs
Complete Guide to the Ni-Slide Series & Stainless Steel Series
Attwood Marine offers premium gas springs designed for boat hatches, lids, and other marine applications. This guide dives deep into the two major product lines: the Ni-Slide Series and the Stainless Steel Series. You’ll also find part numbers, specifications, and help choosing the right gas spring.
Ni-Slide Series
The Ni-Slide (SL) Series features carbon steel shafts with a nitrogen case-hardened finish and a corrosion-resistant black powder coating. They are cost-effective and suitable for limited exposure to saltwater.| Part Number | Extended Length | Compressed Length | Stroke | Output Force (lbs) |
|---|---|---|---|---|
| SL1205 | 10" | 7" | 3" | 20 |
| SL2405 | 15" | 9.5" | 5.5" | 40 |
| SL30405 | 10" | 7" | 3" | 40 |
| SL31405 | 7.5" | 5.25" | 2.25" | 40 |
| SL34205 | 20" | 12" | 8" | 20 |
| SL34305 | 20" | 12" | 8" | 30 |
| SL34605 | 20" | 12" | 8" | 60 |
| SL34905 | 20" | 12" | 8" | 90 |
| SL36205 | 17.2" | 10.2" | 7" | 20 |
| SL36905 | 17.2" | 10.2" | 7" | 90 |
| SL33605 | 15" | 9.5" | 5.5" | 60 |
Stainless Steel Series
The ST Series is made with stainless steel shafts and shells, offering maximum corrosion resistance for continuous marine or saltwater exposure. These come with corrosion-proof composite ends and a clip-less design.
| Part Number | Extended Length | Compressed Length | Stroke | Output Force (lbs) |
|---|---|---|---|---|
| ST30205 | 10" | 7" | 3" | 20 |
| ST30405 | 10" | 7" | 3" | 40 |
| ST31205 | 7.5" | 5.25" | 2.25" | 20 |
| ST32305 | 10.5" | 7.5" | 3" | 30 |
| ST33205 | 15" | 9.5" | 5.5" | 20 |
| ST33405 | 15" | 9.5" | 5.5" | 40 |
| ST33605 | 15" | 9.5" | 5.5" | 60 |
| ST34205 | 20" | 12" | 8" | 20 |
| ST34305 | 20" | 12" | 8" | 30 |
| ST34405 | 20" | 12" | 8" | 40 |
| ST34805 | 20" | 12" | 8" | 80 |
| ST34905 | 20" | 12" | 8" | 90 |
| ST341205 | 20" | 12" | 8" | 120 |
| ST35405 | 12.04" | 8.46" | 3.58" | 40 |
| ST35505 | 12.04" | 8.46" | 3.58" | 50 |
| ST36405 | 17.2" | 10.2" | 7" | 40 |
| ST36705 | 17.2" | 10.2" | 7" | 70 |
| ST36905 | 17.2" | 10.2" | 7" | 90 |
How to Choose the Right Gas Spring
- Weight: Know the weight of the lid or hatch to choose proper output force.
- Length: Measure extended and compressed distances between mounting points.
- Environment: Use Stainless Steel in saltwater exposure; Ni-Slide for general applications.
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