Bulletin #7 of 2020 Change to Product Bulletin
Bulletin #7 of 2020. July 16, 2020
Change to Product Bulletin
P/N 510-017 O-ring will be replaced with P/N 510-018 O-ring
Products Affected: 500-010 SL 17B Helmet w/Posts w/455 Balanced Regulator, 500-011 SL 17B Helmet w/MWPC w/455 Balanced Regulator, 500-040 SL 27 Helmet w/Posts w/455 Balanced Regulator, 500-041 SL 27 Helmet w/MWPC w/455 Balanced Regulator, 500-050 KM 37 Helmet w/Posts w/455 Balanced Regulator, 500-051 KM 37 Helmet w/MWPC w/455 Balanced Regulator, 500-599 SL 17C Helmet w/Posts w/455 Balanced Regulator, 500-600 SL 17C Helmet w/MWPC w/455 Balanced Regulator, 500-700 KM 97 Helmet w/Posts, 500-701 KM 97 Helmet w/MWPC, 500-710 KM Diamond Helmet w/Posts, 500-711 KM Diamond Helmet w/MWPC, 505-088 Adjustment Knob/Packing Nut Assembly, 505-455 (order P/N 525-765) 455 Balanced Regulator, 525-356 SL 17C/K, KM 37 And 57 With 455 Regulator Soft Goods Overhaul Kit, 525-359 SL 27® With 455 Regulator Soft Goods Overhaul Kit, 525-364 KM 97 Soft Goods Overhaul Kit, 525-367 KMB® 18/28 With 455 Regulator Soft Goods Overhaul Kit, 525-369 Helmet Spares Kit For SL 17K And KM 37 Helmets With 455 Balanced Regulator, 525-718 Stainless Steel Balanced Regulator Rebuild Kit (For SuperFlow® 450), 525-757 SuperFlow® 450 Regulator Parts Upgrade Kit, 525-765 Conversion Kit, 455 Regulator For 350/450 Regulators, 525-767 455 Balanced Regulator Rebuild Kit, 525-769 Conversion Kit, 455 Regulator For KM 77,
Beginning in July 2020 we will replace P/N 510-017 O-ring with P/N 510-018 O-ring in the 455 Balanced Regulator and KM Diamond and associated kits. This O-ring is found in the SuperFlow® 450, 455 Balanced Regulator and KM Diamond adjustment knob/packing assembly. We have found an enhancement in using the new P/N 510-018 O-ring in creating a more positive seal. Any remaining stock of the P/N 510-017 O-ring can be used without issue.