Item # RLRR28SU8, RLRR Series Lock Rings On Howmet Aerospace

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Unit of Measure

Specifications
Notes

Series	N/A RLRR
Basic Lockring Size	N/A 28
Material Type¹	N/A A286 CRES
Material Specification	N/A AMS 5731 or AMS 5732 or AMS 5734 or AMS 5737
Heat Treat	N/A 269 HB Min
Finish	N/A Passivate per AMS2700
A - Dia ±.005	N/A 0.400 in
B - Thickness ±.005	N/A 0.138 in
C ±.005	N/A 0.040 in
E - Dia +.004 -.003	N/A 0.323 in
F - Diameter	N/A 0.364 in
G - Dia +.005 -.004	N/A 0.468 in
H - Dia +.003 -.006	N/A 0.430 in
J - Nr. of Internal Serrations	N/A 20.000
K +1º -2º	N/A 102.000 º
M - Nr. of External Serrations (Total Teeth; Both Segments)	N/A 14.000
N	N/A 90.000 º
R - Radius, 2 Places	N/A 0.214 in

¹ The Preferred Alloy Steel Material is the 4130, 4140 or 8740 (SA code).