MS3211B
TABLE I. Dash Numbers and Dimensions.
DASH NO. SEE NOTE 4 |
SHAFT DIAMETER |
RECOMMENDED GROOVE DIMENSIONS |
RING DIMENSIONS |
||||||||||||
Nominal |
Basic |
Diameter |
Width |
As Furnished (Free) |
Installed I.D. C |
||||||||||
S |
B |
A |
I.D. D |
Gap G |
Width W |
Thickness T |
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|
1 |
3/16 |
.188 |
.125 |
+.000 -.005 |
.034 |
+.003 -.000 |
.197 |
+.000 -.005 |
.125 |
+.005 -.000 |
.062 |
±.015 |
.031 |
±.002 |
.125 |
2 |
7/32 |
.219 |
.173 |
.034 |
.230 |
+.000 -.010 |
.143 |
.046 |
.031 |
.173 |
|||||
3 |
1/4 |
.250 |
.188 |
.034 |
.266 |
.182 |
.062 |
.031 |
.188 |
||||||
4 |
5/16 |
.312 |
.250 |
.034 |
.328 |
.191 |
+.010 .000 |
.079 |
.039 |
.250 |
|||||
5 |
3/8 |
.375 |
.313 |
+.000 -.010 |
.052 |
+.005 -.000 |
.394 |
.264 |
.094 |
.047 |
±.003 |
.313 |
|||
6 |
7/16 |
.438 |
.376 |
.060 |
.459 |
+.000 -.015 |
.203 |
.109 |
.055 |
.376 |
|||||
7 |
1/2 |
.500 |
.438 |
.069 |
.525 |
.233 |
.125 |
.063 |
.438 |
||||||
8 |
9/16 |
.562 |
.493 |
.077 |
.591 |
+.000 -.020 |
.241 |
.141 |
.070 |
.493 |
|||||
9 |
5/8 |
.625 |
.547 |
.086 |
.656 |
.253 |
.156 |
.078 |
±.004 |
.547 |
|||||
10 |
11/16 |
.688 |
.602 |
.094 |
.722 |
.278 |
.172 |
.086 |
.602 |
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11 |
3/4 |
.750 |
.656 |
.103 |
.788 |
+.000 -.025 |
.310 |
.188 |
.094 |
.656 |
|||||
12 |
13/16 |
.812 |
.711 |
.112 |
.853 |
.331 |
+.015 -.000 |
.203 |
.102 |
±.005 |
.711 |
||||
13 |
7/8 |
.875 |
.765 |
.120 |
.919 |
+.000 -.030 |
.357 |
.219 |
.109 |
.765 |
|||||
14 |
15/16 |
.938 |
.820 |
.129 |
.984 |
.387 |
.234 |
.117 |
.820 |
||||||
15 |
1 |
1.000 |
.874 |
.138 |
1.050 |
.423 |
.250 |
.125 |
.874 |
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NOTES:
1. MATERIAL:
(a) Carbon steel in accordance with SAE AIR4127, AISI 1008 thru 1020 inclusive.
(b) Corrosion resisting steel (CRES) in accordance with SAE-AMS-QQ-S-763, Class 302 or 304, annealed ; ASTM A 666 or 304, strip, annealed; or ASTM A 167, Type 302 or 304, strip, annealed.
(c) Phosphor bronze in accordance with ASTM-B159/B159M, copper alloy UNS C51000, soft; ASTM B 103/103M, copper alloy UNS C51000 strip, soft, or ASTM B139/B139M, copper alloy UNS C50000, strip or flat wire, soft.
(d) Beryllium copper, copper alloy, UNS C17200 in accordance with ASTM B197/B197M, or ASTM B194 strip, annealed.
2. PROTECTIVE COATING:
(a) Carbon steel rings shall be zinc plated in accordance with ASTM B633, Type II, Class Fe/Zn13 or SAE-AMS-C-81562, Class 5, Type II.
(b) CRES rings shall be passivated in accordance with SAE-AMS2700.
(c) Beryllium copper rings requiring protective coating shall be cadmium plated in accordance with
SAE-AMS-QQ-P-416, Class 2, Type II or SAE-AMS-C-81562, Class 2, Type II.
3. TOLERANCE: tolerances apply before application of protective coating.
2
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