# MS311 — Stihl chainsaw chain and bar specifications by model

For MS311, bar length is 20"; pitch is .325"; gauge is 0.050"; drive links is 81; stihl chain part number is 3695-005-0081, recorded from its source on 2026-08-05.

- **Model:** MS311
- **Bar length:** 20"
- **Pitch:** .325"
- **Gauge:** 0.050"
- **Drive links:** 81
- **STIHL chain part number:** 3695-005-0081 _(unconfirmed — we could not tie this to the quote below)_

## What the source says

> 26RM3 81 | <https://www.alldadelawnmowers.com/search.asp?keyword=3689-005-0081> 3689-005-0081 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//22BPX081G//1/y> 22BPX081G | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//22LPX081G//1/y> 22LPX081G | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-008-6821> 3003 008 6821 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//203VXLGD025//1/y> 203VXLGD025 | 3/8" | 0.050" | 72 | 20" | 33RS3 72 | <https://www.alldadelawnmowers.com/search.asp?keyword=3624-005-0072> 3624-005-0072 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//72LGX072G//1/y> 72LGX072G | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//72LPX072G//1/y> 72LPX072G | | <https://www.alldadelawnmowers.com/search.asp?keyword=3003-008-8921> 3003 008 8921 | <https://www.lawnequipmentsuperstore.com/oempartfinder#/s/ORC//200VXLHD025//1/y> 200VXLHD025 | MS311 | .325" | 0.050" |

## Source

- https://www.lawnequipmentsuperstore.com/stihl-chainsaw-bar-chain-quick-guide

Last verified: 2026-08-05. Review by: 2028-08-04.
Part of [Stihl chainsaw chain and bar specifications by model](https://referencesource.org/stihl-chainsaw-chain-and-bar-specs/).