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Bulletin #05 of 2015

Interior Title: 
Bulletin #5 of 2015
Title Type: 
Change to Product Bulletin
Bulletin Date: 
Bulletin #5 of 2015. April 27, 2015
Bulletin Type: 
Change to Product Bulletin
Bulletin Subject: 
550-232 Sleeves for the sealed pull pins now marked with groove, effective immediately
Products Affected: 
550-232 Pull Pin Sleeve (sold in the 525-112 Sleeve Kits only. Two per kit). 525-112 Pull Pin Sleeve Kit

When used with the stainless steel helmets, Kirby Morgan® recommends shortening the sleeves (550-232) a small amount, for improved fit and function. A groove marking the best area to trim the sleeve is now machined into the material around the small end of the sleeve, as shown below.

Bulletin #5 of 2015

Original 550-232, left and current grooved 550-232, right.

Again, the 550-232 Sleeves are sold only in kits of two, 525-112. The kit contains instructions on trimming when used with the Kirby Morgan® stainless steel helmets.


Kirby Morgan® does not recommend trimming earlier sleeves that do not have the machined groove.

Sleeves with grooves are shipping now. Order 525-112 Pull Pin Sleeve Kit.

There is no change to price or part number at this time.

Please contact your local KMDSI dealer or e-mail KMDSI at [email protected] for more information.