MIL-DTL-18240F
TABLE I Self-locking element dimensions. (see figure 1)
Gov't
Nom
Type
A
B
C
D
Des.
dia
Max
Min
Max
Min
Max
Min
Min
04
.112
L,P
.250
.125
.115
.105
.312
.180
.025
.106
.053
.161
.121
.053
N 1/
06
.138
L,P
.312
.156
.141
.131
.390
.234
.030
.106
.066
.184
.144
.066
N 1/
08
.164
L,P
.312
.156
.167
.157
.390
.234
.030
.124
.084
.192
.152
.084
N1/
10
.190
L,P
.312
.156
.193
.183
.390
.234
.030
N
.124
.084
.208
.150
.084
40
.250
L,P
.326
.178
.253
.243
.415
.267
.025
N
.144
.089
.231
.191
.089
50
.312
L,P
.364
.208
.315
.305
.468
.312
.025
N
.188
.130
.278
.222
.130
60
.375
L,P
.474
.208
.378
.368
.578
.312
.035
N
.166
.146
.284
.230
.146
70
.437
L,P
.456
.250
.440
.430
.581
.375
.035
N
.166
.146
.301
.261
.146
80
.500 2/
L,P
.581
.250
.503
.493
.706
.375
.035
N
.166
.146
.301
.261
.146
90
.562 2/
L,P
.827
.278
.566
.552
.954
.417
.055
N
.199
.175
.363
.323
.175
100
.625 2/
L,P
.850
.278
.628
.616
.986
.417
.055
N
.197
.175
.363
.323
.175
120
.750 2/
L,P
.999
.312
.753
.741
1.150
.469
.055
N
.235
.209
.411
.321
.209
140
.875 2/
L,P
1.143
.357
.878
.864
1.311
.536
.055
N
.235
.209
.427
.387
.209
160
1.000 2/
L,P
1.250
.471
1.003
.987
1.437
.625
.055
N
.235
.209
.427
.387
.209
180
1.125 2/
L,P
1.417
.417
1.128
1.112
1.632
.625
.055
N
.266
.240
.516
.387
.240
200
1.250 2/
L,P
1.604
.417
1.253
1.237
1.819
.625
.055
N
.266
.240
.516
.452
.240
1/ Plug/Pellet is not recommended for sizes below .190.
2/ Screws .500 inch and larger may have two self-locking elements. They shall not be more than
120 degrees of thread diameter apart.
13
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