Howmet Aerospace - RLH()S3C Series Lock Rings for Hard Material

Unit of Measure

Items	RLH16S3C4 RLH()S3C Series Lock Rings for Hard Material	RLH18S3C4 RLH()S3C Series Lock Rings for Hard Material	RLH21S3C4 RLH()S3C Series Lock Rings for Hard Material	RLH24S3C5 RLH()S3C Series Lock Rings for Hard Material	RLH28S3C5 RLH()S3C Series Lock Rings for Hard Material
Basic Lockring Size	N/A 16	N/A 18	N/A 21	N/A 24	N/A 28
Material Type¹	N/A Inconel 718
Material Specification	N/A AMS 5662
Heat Treat	N/A 230 KSI UTS Min
Finish	N/A Passivate per AMS-QQ-P-35
A - Dia +.005 -.004	N/A 0.274 in	N/A 0.308 in	N/A 0.354 in	N/A 0.399 in	N/A 0.468 in
B - Thickness	N/A 0.068 in	N/A 0.068 in	N/A 0.068 in	N/A 0.081 in	N/A 0.081 in
C - Dia	N/A 0.223 in	N/A 0.255 in	N/A 0.298 in	N/A 0.343 in	N/A 0.400 in
D - Dia +.004 -.003	N/A 0.161 in	N/A 0.189 in	N/A 0.213 in	N/A 0.266 in	N/A 0.323 in
E - Nr. of External Serrations	N/A 10.000	N/A 10.000	N/A 12.000	N/A 12.000	N/A 13.000
F - Nr. of Internal Serrations	N/A 14.000	N/A 16.000	N/A 13.000	N/A 17.000	N/A 20.000
¹ The Preferred Alloy Steel Material is the 4130, 4140 or 8740 (SA code).