| 規格 ボルト （3） SeekAtec |
NAS1303 シリーズ 精密寸法許容差六角ボルト |
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| PROCUREMENT SPECIFICATION |
TITLE | CLASSIFICATION |
| MIL-B-7838 | BOLT,HEX HEAD,CLOSE TOLERANCE 160,000PSI TENSIL |
STANDARD PART NAS １3０３ THRU NAS 1316 |
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| Basic Part Number |
Thread |
A |
B REF |
C MIN |
D DIAMETER |
H +.015 -.000 |
J +.015 -.000 |
K DIA ±.01 |
M ±.010 |
N DIA +.010 -.000 |
P(d) DIA +.010 -.000 |
R RAD |
T REF |
U REF |
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| Before Plate |
After Plate |
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| NAS1303 | 10-32UNF-3A | .376 .367 |
0.43 | 0.359 | .1887 .1881 |
.1895 .1885 |
0.11 | 0.073 | 0.19 | 0.163 | 0.046 | 0.07 | .020 .010 |
0.338 | 0.016 | |||
| NAS1304 | 1/4-28UNF-3A | .439 .430 |
0.51 | 0.422 | .2487 .2481 |
.2495 .2485 |
0.125 | 0.083 | 0.25 | 0.178 | 0.076 | .020 .010 |
0.425 | 0.018 | ||||
| NAS1305 | 5/16-24UNF-3A | .502 .492 |
0.58 | 0.484 | .3112 .3106 |
.3120 .3110 |
0.156 | 0.104 | 0.31 | 0.181 | 0.07 | 0.076 | .020 .010 |
0.469 | 0.021 | |||
| NAS1306 | 3/8-24UNF-3A | .564 .553 |
0.65 | 0.547 | .3737 3731 |
.3745 .3735 |
0.188 | 0.125 | 0.38 | 0.197 | 0.106 | .025 .015 |
0.578 | 0.021 | ||||
| NAS1307 | 7/16-20UNF-3A | .690 .679 |
0.79 | 0.672 | .4362 .4356 |
.4370 .4360 |
0.219 | 0.146 | 0.44 | 0.201 | 0.106 | .025 .015 |
0.594 | 0.025 | ||||
| NAS1308 | 1/2-20UNF-3A | .752 .741 |
0.87 | 0.734 | .4987 .4981 |
.4995 .4985 |
0.25 | 0.167 | 0.50 | 0.216 | 0.106 | .030 .020 |
0.735 | 0.025 | ||||
| NAS1309 | 9/16-18UNF-3A | .877 .865 |
1.01 | 0.859 | .5607 .5601 |
.5615 .5605 |
0.281 | 0.188 | 0.56 | 0.218 | 0.141 | .035 .020 |
0.84 | 0.028 | ||||
| NAS1310 | 5/8-18UNF-3A | .940 .928 |
1.09 | 0.922 | .6232 .6226 |
.6240 .6230 |
0.312 | 0.208 | 0.62 | 0.249 | 0.141 | .040 .025 |
0.902 | 0.028 | ||||
| NAS1312 | 3/4-16UNF-3A | 1.064 1.052 |
1.23 | 1.047 | .7482 .7476 |
.7490 .7480 |
0.375 | 0.25 | 0.75 | 0.252 | 0.141 | .045 .030 |
1.041 | 0.031 | ||||
| NAS1314 | 7/8-14UNF-3A | 1.252 1.239 |
1.44 | 1.234 | .8732 .8726 |
.8740 .8730 |
0.438 | 0.292 | 0.88 | 0.257 | 0.141 | .050 .035 |
1.184 | 0.036 | ||||
| NAS1316 | 1-12UNF-3A | 1.440 1.427 |
1.66 | 1.422 | .9982 .9976 |
.9990 .9980 |
0.50 | 0.333 | 1.00 | 0.264 | 0.141 | .060 .045 |
1.309 | 0.042 | ||||
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| GRIP | NAS 1303 THRU 1316, LENGTH: ±.015 | |||||||||||
| DASH No. |
GRIP ±.010 |
NAS 1303 |
NAS 1304 |
NAS 1305 |
NAS 1306 |
NAS 1307 |
NAS 1308 |
NAS 1309 |
NAS 1310 |
NAS 1312 |
NAS 1314 |
NAS 1316 |
| 1 | .062 | .400 | .487 | .531 | .640 | .656 | .797 | .902 | .964 | 1.103 | 1.246 | 1.371 |
| 2 | .125 | .463 | .550 | .594 | .703 | .719 | .860 | .965 | 1.027 | 1.166 | 1.309 | 1.434 |
| 3 | .188 | .526 | .613 | .657 | .766 | .782 | .923 | 1.028 | 1.090 | 1.229 | 1.372 | 1.497 |
| 4 | .250 | .588 | .675 | .719 | .828 | .844 | .985 | 1.090 | 1.152 | 1.291 | 1.434 | 1.559 |
| 5 | .312 | .650 | .737 | .781 | .890 | .906 | 1.047 | 1.152 | 1.214 | 1.353 | 1.496 | 1.621 |
| 6 | .375 | .713 | .800 | .844 | .953 | .969 | 1.110 | 1.215 | 1.277 | 1.416 | 1.559 | 1.684 |
| 7 | .438 | .776 | .863 | .907 | 1.016 | 1.032 | 1.173 | 1.278 | 1.340 | 1.479 | 1.622 | 1.747 |
| 8 | .500 | .838 | .925 | .969 | 1.078 | 1.094 | 1.235 | 1.340 | 1.402 | 1.541 | 1.684 | 1.809 |
| 9 | .562 | .900 | .987 | 1.031 | 1.140 | 1.156 | 1.297 | 1.402 | 1.464 | 1.603 | 1.746 | 1.871 |
| 10 | .625 | .963 | 1.050 | 1.094 | 1.203 | 1.219 | 1.360 | 1.465 | 1.527 | 1.666 | 1.809 | 1.934 |
| 11 | .688 | 1.026 | 1.113 | 1.157 | 1.266 | 1.282 | 1.423 | 1.528 | 1.590 | 1.729 | 1.872 | 1.997 |
| 12 | .750 | 1.088 | 1.175 | 1.219 | 1.328 | 1.344 | 1.485 | 1.590 | 1.652 | 1.791 | 1.934 | 2.059 |
| 13 | .812 | 1.150 | 1.237 | 1.281 | 1.390 | 1.406 | 1.547 | 1.652 | 1.714 | 1.853 | 1.996 | 2.121 |
| 14 | .875 | 1.213 | 1.300 | 1.344 | 1.453 | 1.469 | 1.610 | 1.715 | 1.777 | 1.916 | 2.059 | 2.184 |
| 15 | .938 | 1.276 | 1.363 | 1.407 | 1.516 | 1.532 | 1.673 | 1.778 | 1.840 | 1.979 | 2.122 | 2.247 |
| 16 | 1.000 | 1.338 | 1.425 | 1.469 | 1.578 | 1.594 | 1.735 | 1.840 | 1.902 | 2.041 | 2.184 | 2.309 |
| 17 | 1.062 | 1.400 | 1.487 | 1.531 | 1.640 | 1.656 | 1.797 | 1.902 | 1.964 | 2.103 | 2.246 | 2.371 |
| 18 | 1.125 | 1.463 | 1.550 | 1.594 | 1.703 | 1.719 | 1.860 | 1.965 | 2.027 | 2.166 | 2.309 | 2.434 |
| 19 | 1.188 | 1.526 | 1.613 | 1.657 | 1.766 | 1.782 | 1.923 | 2.028 | 2.090 | 2.229 | 2.372 | 2.497 |
| 20 | 1.250 | 1.588 | 1.675 | 1.719 | 1.828 | 1.844 | 1.985 | 2.090 | 2.152 | 2.291 | 2.434 | 2.559 |
| 21 | 1.312 | 1.650 | 1.737 | 1.781 | 1.890 | 1.906 | 2.047 | 2.152 | 2.214 | 2.353 | 2.496 | 2.621 |
| 22 | 1.375 | 1.713 | 1.800 | 1.844 | 1.953 | 1.969 | 2.110 | 2.215 | 2.277 | 2.416 | 2.559 | 2.684 |
| 23 | 1.438 | 1.776 | 1.863 | 1.907 | 2.016 | 2.032 | 2.173 | 2.278 | 2.340 | 2.479 | 2.622 | 2.747 |
| 24 | 1.500 | 1.838 | 1.925 | 1.969 | 2.078 | 2.094 | 2.235 | 2.340 | 2.402 | 2.541 | 2.684 | 2.809 |
| 25 | 1.562 | 1.900 | 1.987 | 2.031 | 2.140 | 2.156 | 2.297 | 2.402 | 2.464 | 2.603 | 2.746 | 2.871 |
| 26 | 1.625 | 1.963 | 2.050 | 2.094 | 2.203 | 2.219 | 2.360 | 2.465 | 2.527 | 2.666 | 2.809 | 2.934 |
| 27 | 1.688 | 2.026 | 2.113 | 2.157 | 2.266 | 2.282 | 2.423 | 2.528 | 2.590 | 2.729 | 2.872 | 2.997 |
| 28 | 1.750 | 2.088 | 2.175 | 2.219 | 2.328 | 2.344 | 2.485 | 2.590 | 2.652 | 2.791 | 2.934 | 3.059 |
| 29 | 1.812 | 2.150 | 2.237 | 2.281 | 2.390 | 2.406 | 2.547 | 2.652 | 2.714 | 2.853 | 2.996 | 3.121 |
| 30 | 1.875 | 2.213 | 2.300 | 2.344 | 2.453 | 2.469 | 2.610 | 2.715 | 2.777 | 2.916 | 3.059 | 3.184 |
| 31 | 1.938 | 2.276 | 2.363 | 2.407 | 2.516 | 2.532 | 2.673 | 2.778 | 2.840 | 2.979 | 3.122 | 3.247 |
| 32 | 2.000 | 2.338 | 2.425 | 2.469 | 2.578 | 2.594 | 2.735 | 2.840 | 2.902 | 3.041 | 3.184 | 3.309 |
| 34 | 2.125 | 2.463 | 2.550 | 2.594 | 2.703 | 2.719 | 2.860 | 2.965 | 3.027 | 3.166 | 3.309 | 3.434 |
| 36 | 2.250 | 2.588 | 2.675 | 2.719 | 2.828 | 2.844 | 2.985 | 3.090 | 3.152 | 3.291 | 3.434 | 3.559 |
| 38 | 2.375 | 2.713 | 2.800 | 2.844 | 2.953 | 2.969 | 3.110 | 3.215 | 3.277 | 3.416 | 3.559 | 3.684 |
| 40 | 2.500 | 2.838 | 2.925 | 2.969 | 3.078 | 3.094 | 3.235 | 3.340 | 3.402 | 3.541 | 3.684 | 3.809 |
| 42 | 2.625 | 2.963 | 3.050 | 3.094 | 3.203 | 3.219 | 3.360 | 3.465 | 3.527 | 3.666 | 3.809 | 3.934 |
| 44 | 2.750 | 3.088 | 3.175 | 3.219 | 3.328 | 3.344 | 3.485 | 3.590 | 3.652 | 3.791 | 3.934 | 4.059 |
| 46 | 2.875 | 3.213 | 3.300 | 3.344 | 3.453 | 3.469 | 3.610 | 3.715 | 3.777 | 3.916 | 4.059 | 4.184 |
| 48 | 3.000 | 3.338 | 3.425 | 3.469 | 3.578 | 3.594 | 3.735 | 3.840 | 3.902 | 4.041 | 4.184 | 4.309 |
| 50 | 3.125 | 3.463 | 3.550 | 3.594 | 3.703 | 3.719 | 3.860 | 3.965 | 4.027 | 4.166 | 4.309 | 4.434 |
| 52 | 3.250 | 3.588 | 3.675 | 3.719 | 3.828 | 3.844 | 3.985 | 4.090 | 4.152 | 4.291 | 4.434 | 4.559 |
| 54 | 3.375 | 3.713 | 3.800 | 3.844 | 3.953 | 3.969 | 4.110 | 4.215 | 4.277 | 4.416 | 4.559 | 4.684 |
| 56 | 3.500 | 3.838 | 3.925 | 3.969 | 4.078 | 4.094 | 4.235 | 4.340 | 4.402 | 4.541 | 4.684 | 4.809 |
| 58 | 3.625 | 3.963 | 4.050 | 4.094 | 4.203 | 4.219 | 4.360 | 4.465 | 4.527 | 4.666 | 4.809 | 4.934 |
| 60 | 3.750 | 4.088 | 4.175 | 4.219 | 4.328 | 4.344 | 4.485 | 4.590 | 4.652 | 4.791 | 4.934 | 5.059 |
| 62 | 3.875 | 4.213 | 4.300 | 4.344 | 4.453 | 4.469 | 4.610 | 4.715 | 4.777 | 4.916 | 5.059 | 5.184 |
| 64 | 4.000 | 4.338 | 4.425 | 4.469 | 4.578 | 4.594 | 4.735 | 4.840 | 4.902 | 5.041 | 5.184 | 5.309 |
| 66 | 4.125 | 4.463 | 4.550 | 4.594 | 4.703 | 4.719 | 4.860 | 4.965 | 5.027 | 5.166 | 5.309 | 5.434 |
| 68 | 4.250 | 4.588 | 4.675 | 4.719 | 4.828 | 4.844 | 4.985 | 5.090 | 5.152 | 5.291 | 5.434 | 5.559 |
| 70 | 4.375 | 4.713 | 4.800 | 4.844 | 4.953 | 4.969 | 5.110 | 5.215 | 5.277 | 5.416 | 5.559 | 5.684 |
| 72 | 4.500 | 4.838 | 4.925 | 4.969 | 5.078 | 5.094 | 5.235 | 5.340 | 5.402 | 5.541 | 5.684 | 5.809 |
| 74 | 4.625 | 4.963 | 5.050 | 5.094 | 5.203 | 5.219 | 5.360 | 5.465 | 5.527 | 5.666 | 5.809 | 5.934 |
| 76 | 4.750 | 5.088 | 5.175 | 5.219 | 5.328 | 5.344 | 5.485 | 5.590 | 5.652 | 5.791 | 5.934 | 6.059 |
| 78 | 4.875 | 5.213 | 5.300 | 5.344 | 5.453 | 5.469 | 5.610 | 5.715 | 5.777 | 5.916 | 6.059 | 6.184 |
| 80 | 5.000 | 5.338 | 5.425 | 5.469 | 5.578 | 5.594 | 5.735 | 5.840 | 5.902 | 6.041 | 6.184 | 6.309 |
| 82 | 5.125 | 5.463 | 5.550 | 5.594 | 5.703 | 5.719 | 5.860 | 5.965 | 6.027 | 6.166 | 6.309 | 6.434 |
| 84 | 5.250 | 5.588 | 5.675 | 5.719 | 5.828 | 5.844 | 5.985 | 6.090 | 6.152 | 6.291 | 6.434 | 6.559 |
| 86 | 5.375 | 5.713 | 5.800 | 5.844 | 5.953 | 5.969 | 6.110 | 6.215 | 6.277 | 6.416 | 6.559 | 6.684 |
| 88 | 5.500 | 5.838 | 5.925 | 5.969 | 6.078 | 6.094 | 6.235 | 6.340 | 6.402 | 6.541 | 6.684 | 6.809 |
| 90 | 5.625 | 5.963 | 6.050 | 6.094 | 6.203 | 6.219 | 6.360 | 6.465 | 6.527 | 6.666 | 6.809 | 6.934 |
| 92 | 5.750 | 6.088 | 6.175 | 6.219 | 6.328 | 6.344 | 6.485 | 6.590 | 6.652 | 6.791 | 6.934 | 7.059 |
| 94 | 5.875 | 6.213 | 6.300 | 6.344 | 6.453 | 6.469 | 6.610 | 6.715 | 6.777 | 6.916 | 7.059 | 7.184 |
| 96 | 6.000 | 6.338 | 6.425 | 6.469 | 6.578 | 6.594 | 6.735 | 6.840 | 6.902 | 7.041 | 7.184 | 7.309 |
| DASH NO. INDICATED GRIP LENGTH IN 0.062" INCREMENTS. INTERMEDIATE
OR LONGER LENGTH MAY BE SPECIFIED BY USE OF WHOLE DASH NO. ONLY. |
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| 注：指示なきすべての寸法はインチ, 1 インチ = 25.4mm | ||||||||||||
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