MS16285A
Table I. Dash Numbers and Dimensions.
Dash Number |
Size |
Threads Per Inch |
Width Across Flats F |
Width Across Corners G |
Thickness H |
|||
Max |
Min |
Max |
Min |
Max |
Min |
|||
-1 |
.2500 |
20UNC-2B |
.5000 |
.488 |
.577 |
.556 |
.250 |
.218 |
-2 |
.3125 |
18UNC-2B |
.5625 |
.546 |
.650 |
.622 |
.314 |
.280 |
-3 |
.3750 |
16UNC-2B |
.6875 |
.669 |
.794 |
.763 |
.377 |
.341 |
-4 |
.4375 |
14UNC-2B |
.7500 |
.728 |
.866 |
.830 |
.441 |
.403 |
-5 |
.5000 |
13UNC-2B |
.8750 |
.850 |
1.010 |
.969 |
.504 |
.464 |
-6 |
.5625 |
12UNC-2B |
.9375 |
.909 |
1.083 |
1.037 |
.568 |
.526 |
-7 |
.6250 |
11UNC-2B |
1.0625 |
1.031 |
1.227 |
1.175 |
.631 |
.587 |
-8 |
.7500 |
10UNC-2B |
1.2500 |
1.212 |
1.443 |
1.382 |
.758 |
.710 |
-9 |
.8750 |
9UNC-2B |
1.4375 |
1.394 |
1.660 |
1.589 |
.885 |
.833 |
-10 |
1.0000 |
8UNC-2B |
1.6250 |
1.575 |
1.876 |
1.796 |
1.012 |
.956 |
-11 |
1.1250 |
8UN-2B |
1.8125 |
1.756 |
2.093 |
2.002 |
1.139 |
1.079 |
-12 |
1.2500 |
8UN-2B |
2.0000 |
1.938 |
2.309 |
2.209 |
1.251 |
1.187 |
-13 |
1.3750 |
8UN-2B |
2.1875 |
2.119 |
2.526 |
2.416 |
1.378 |
1.310 |
-14 |
1.5000 |
8UN-2B |
2.3750 |
2.300 |
2.742 |
2.622 |
1.505 |
1.433 |
-15 |
1.7500 |
8UN-2B |
2.7500 |
2.662 |
3.175 |
3.035 |
1.759 |
1.679 |
-16 |
2.0000 |
8UN-2B |
3.1250 |
3.025 |
3.608 |
3.449 |
2.013 |
1.925 |
-17 |
2.2500 |
8UN-2B |
3.5000 |
3.388 |
4.041 |
3.862 |
2.251 |
2.155 |
-18 |
2.5000 |
8UN-2B |
3.8750 |
3.750 |
4.474 |
4.275 |
2.505 |
2.401 |
-19 |
2.7500 |
8UN-2B |
4.2500 |
4.112 |
4.907 |
4.688 |
2.759 |
2.647 |
-20 |
3.0000 |
8UN-2B |
4.6250 |
4.475 |
5.340 |
5.102 |
3.013 |
2.893 |
Requirements:
1. MATERIAL: Material shall be alloy steel, carbon-molybdenum, Grade 4 in accordance with MIL-S-1222, or alloy steel, chromium-molybdenum, Grade 7 in accordance with MIL-S-1222.
2. THREAD: The threads shall be in accordance with ASME B1.1. Thread acceptability shall be in accordance with ASME B1.3M, System 21.
3. Use: These nuts are for use in high temperature piping systems.
4. PART NUMBER: The MS part number consists of the MS number, plus the dash number from Table I.
Example: MS16285 -1
Dash number
Basic MS number
NOTES:
1. Dimension are in inches unless otherwise specified.
2. Interpret drawing in accordance with ASME Y14.5M.
3. In the event of a conflict between the text of this document and the references cited herein, the text of this document shall take precedence.
4. Unless otherwise specified, issues of referenced documents are those in effect at the time of solicitation.
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