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ALL SIZES ARE INCHES |
INSIDE DIA. (ID) |
OUTSIDE DIA. (OD) |
||
|
TRADE SIZE |
THDS PER INCH |
NOM. |
NOM. |
MAX. |
|
1/2 |
14 |
0.675 |
0.815 |
0.819 |
|
3/4 |
14 |
0.879 |
1.029 |
1.034 |
|
1 |
11-1/2 |
1.119 |
1.290 |
1.295 |
|
1-1/4 |
11-1/2 |
1.468 |
1.638 |
1.645 |
|
1-1/2 |
11-1/2 |
1.703 |
1.883 |
1.890 |
|
2 |
11-1/2 |
2.170 |
2.359 |
2.367 |
|
2-1/2 |
8 |
2.597 |
2.857 |
2.867 |
|
3 |
8 |
3.216 |
3.476 |
3.486 |
|
3-1/2 |
8 |
3.711 |
3.971 |
3.981 |
|
4 |
8 |
4.206 |
4.466 |
4.476 |
UL Proposed Dimensions for Intermediate Metallic Conduit - Type I.
IMC Threads and Knockout Sizes are the same as Rigid Metal Conduit.
Standard rigid threaded conduit fittings can be used with I.M.C.
Both rigid conduit and intermediate metallic conduit are threaded and accept couplings, nuts, and bushings et cetera directly.
Electrical Steel Conduit Sizes.
Conduit Size.
INTERMEDIATE METALLIC CONDUIT (IMC)
