Thrust ring size

The Rocketry Forum

Help Support The Rocketry Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Mike6368

Well-Known Member
Joined
Nov 6, 2018
Messages
115
Reaction score
22
Anyone know what size thrust rings I need to order for 75mm and 54mm from McMaster please?
 
The standard external spiral rings you can get from McMaster will not fit in Aeropack retainers. While you can grind them down to fit (I've done it on some AMW cases), I have found that you can buy ones that fit directly from Smalley:

54mmSmalley WST-212-S02Spiral 2.125" shaft, 0.078" thk, 0.141 wallhttp://www.smalley.com/ring/wst-212
76mmSmalley WST-300-S02 (stainless)Spiral 3" Shaft, .093 thick, 0.188 wall(McMaster: 91665A630 does not fit aeropack)

Note that Loki uses thinner rings, so you'd need different parts (or just get them from Loki).
 
I have built up this list over the years and find it very useful. Alan
 

Attachments

  • mcmasterorder.xls
    32 KB · Views: 18
Back
Top