N1800 - Imperial Crescent Rings - BS3673.3 MIL-R-21248/MS 16632

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N1800 - Imperial Crescent Rings - BS3673.3 MIL-R-21248/MS 16632

Ring Dimensions Groove Dimensions Supplementary Data
Thickness  (s) Tolerance Outside Diameter In Unstressed State (d4) Groove Diameter (d2) Tolerance Groove Width (m) Tolerance Diameter d4 in Groove d2 (d42) Load Capacity Groove lb.f (FN) Load Capacity Ring Sharp Corner Abutment lb.f (FR) Applicator

Note all values
are imperial

Unstressed

N1800-0012 0.015 ± 0.002 0.165 0.106 ± 0.0015 0.018 + 0.002 - 0.000 0.18 34 123 AM5
N1800-0015 0.015 ± 0.002 0.205 0.135 ± 0.0015 0.018 + 0.002 - 0.000 0.22 46 153 AM8
N1800-0018 0.015 ± 0.002 0.244 0.165 ± 0.0015 0.018 + 0.002 - 0.000 0.25 61 185 AM10
N1800-0021 0.025 ± 0.002 0.275 0.193 ± 0.002 0.029 + 0.003 - 0.000 0.29 80 359 AM53
N1800-0023 0.025 ± 0.002 0.295 0.208 ± 0.002 0.029 + 0.003 - 0.000 0.31 93 387 AM54
N1800-0025 0.025 ± 0.002 0.311 0.220 ± 0.002 0.029 + 0.003 - 0.000 0.33 106 410 AM12
N1800-0028 0.025 ± 0.002 0.346 0.247 ± 0.002 0.029 + 0.003 - 0.000 0.36 135 461 AM56
N1800-0031 0.025 ± 0.002 0.376 0.276 ± 0.002 0.029 + 0.003 - 0.000 0.39 159 511 AM13
N1800-0037 0.025 ± 0.002 0.448 0.335 ± 0.002 0.029 + 0.003 - 0.000 0.47 212 615 AM58
N1800-0040 0.025 ± 0.002 0.486 0.364 ± 0.002 0.029 + 0.003 - 0.000 0.50 241 665 AM59
N1800-0043 0.025 ± 0.002 0.517 0.393 ± 0.002 0.029 + 0.003 - 0.000 0.53 279 718 AM16
N1800-0050 0.035 ± 0.002 0.581 0.450 ± 0.003 0.039 + 0.003 - 0.000 0.60 353 1,150 AM61
N1800-0056 0.035 ± 0.002 0.653 0.507 ± 0.003 0.039 + 0.003 - 0.000 0.67 437 1,290 AM18
N1800-0062 0.035 ± 0.002 0.715 0.563 ± 0.003 0.039 + 0.003 - 0.000 0.74 548 1,430 AM38
N1800-0068 0.042 ± 0.002 0.784 0.619 ± 0.003 0.046 + 0.003 - 0.000 0.80 671 1,890 AM64
N1800-0075 0.042 ± 0.002 0.845 0.676 ± 0.003 0.046 + 0.003 - 0.000 0.87 785 2,070 AM40
N1800-0081 0.042 ± 0.002 0.915 0.732 ± 0.003 0.046 + 0.003 - 0.000 0.94 918 2,240 AM66
N1800-0087 0.042 ± 0.002 0.991 0.789 ± 0.003 0.046 + 0.003 - 0.000 1.01 1,060 2,410 AM67
N1800-0093 0.042 ± 0.002 1.058 0.843 ± 0.003 0.046 + 0.003 - 0.000 1.08 1,260 2,580 AM68
N1800-0100 0.042 ± 0.002 1.130 0.900 ± 0.003 0.046 + 0.003 - 0.000 1.15 1,410 2,750 AM69
N1800-0112 0.050 ± 0.002 1.267 1.013 ± 0.004 0.056 + 0.004 - 0.000 1.30 1,780 3,690 -
N1800-0118 0.050 ± 0.002 1.321 1.047 ± 0.004 0.056 + 0.004 - 0.000 1.35 2,370 3,890 -
N1800-0125 0.050 ± 0.002 1.415 1.126 ± 0.004 0.056 + 0.004 - 0.000 1.44 2,190 4,100 -
N1800-0137 0.050 ± 0.002 1.555 1.237 ± 0.004 0.056 + 0.004 - 0.000 1.58 2,680 4,510 -
N1800-0150 0.050 ± 0.002 1.691 1.350 ± 0.004 0.056 + 0.004 - 0.000 1.72 3,180 4,920 -
N1800-0175 0.062 ± 0.003 1.975 1.576 ± 0.005 0.068 + 0.004 - 0.000 2.01 4,300 7,110 -
N1800-0200 0.062 ± 0.003 2.257 1.800 ± 0.005 0.068 + 0.004 - 0.000 2.30 5,650 8,130 -