Cut Sheet
KILLARK FITTINGS
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WWW.HUBBELL-KILLARK.COM
F18
O SERIES / DURALOY
®
5 SERIES
ALUMINUM OR MALLEABLE IRON CONDUIT BODIES
• Suitable for wet locations when used with gasketed
covers.
• Federal Specification W-C-586D/A-A 50563.
• Suitable for use in hazardous location applications
when installed according to NEC Articles 501.10(b),
Class I, Div. 2, (Suitable for use in Class I Zone 2
applications) 502.10 and 503.10.
File No. E3397
Certified File No. LR11852
See page F15 for Standard Materials & Finish
Dimensions
X Type
TA Type
TB Type
TA Type
FEATURES-SPECIFICATIONS
TA TYPE CONDUIT BODY*
CATALOG NUMBER
HUB
SIZE
DIMENSIONS
VOLUME
CU. IN.
KILLARK
ALUM.
DURALOY
IRON
A B C D E F G
OTA-1 OTA-1M 1/2”
5-3/8”
(137)
2-1/8”
(54)
2”
(51)
1”
(25)
3-5/32”
(80)
—
5/8”
(16)
4.0
OTA-2 OTA-2M 3/4”
6-1/16”
(154)
2-15/16”
(75)
2-3/16”
(56)
1-7/32”
(29)
3-25/32”
(96)
—
3/4”
(19)
7.0
— OTA-3M 1”
7-1/8”
(181)
2-11/16”
(68)
2-9/16”
(65)
1-15/32”
(35)
4-17/32”
(115)
—
15/16”
(24)
12.0
TB TYPE CONDUIT BODY*
CATALOG NUMBER
HUB
SIZE
DIMENSIONS
VOLUME
CU. IN.
KILLARK
ALUM.
DURALOY
IRON
A B C D E F G
OTB-1 OTB-1M 1/2”
5-3/8”
(137)
2-1/8”
(54)
1-5/16”
(33)
1”
(25)
3-5/32”
(80)
—
5/8”
(16)
4.0
OTB-2 OTB-2M 3/4”
6-1/16”
(160)
2-5/16”
(59)
1-9/16”
(40)
1-7/32”
(31)
3-25/32”
(96)
—
3/4”
(19)
7.0
OTB-3 OTB-3M 1”
7-1/8”
(181)
2-11/16”
(68)
1-13/16”
(46)
1-15/32”
(37)
4-17/32”
(115)
—
15/16”
(24)
12.0
OTB-4 OTB-4M 1-1/4”
9-3/16”
(233)
3-9/16”
(90)
2-1/2”
(64)
2”
(51)
6”
(152)
—
1-3/16”
(30)
32.0
OTB-5 OTB-5M 1-1/2”
9-3/16”
(233)
3-3/4”
(92)
2-1/2”
(64)
2”
(51)
6”
(152)
—
1-3/8”
(35)
36.0
OTB-6 OTB-6M 2”
11-5/8”
(295)
4-5/8”
(117)
3-1/8”
(79)
2-9/16”
(65)
8-1/16”
(205)
—
1-5/8”
(41)
70.0
X TYPE CONDUIT BODY*
CATALOG NUMBER
HUB
SIZE
DIMENSIONS
VOLUME
CU. IN.
KILLARK
ALUM.
DURALOY
IRON
A B C D E F G
OX-1 OX-1M 1/2”
5-3/8”
(137)
1-3/4”
(44)
1-11/16”
(43)
1”
(25)
3-5/32”
(80)
—
5/8”
(16)
4.0
OX-2 OX-2M 3/4”
6-1/16”
(160)
2”
(51)
2-7/8”
(73)
1-7/32”
(31)
3-25/32”
(96)
—
3/4”
(19)
7.0
OX-3 OX-3M 1”
7-1/8”
(181)
2-1/4”
(57)
3-3/8”
(86)
1-15/32”
(37)
4-17/32”
(115)
—
15/16”
(24)
12.0
OX-4 OX-4M 1-1/4”
9-3/16”
(233)
2-9/16”
(65)
4-1/2”
(114)
2”
(51)
6”
(152)
—
1-3/16”
(30)
32.0
OX-5 OX-5M 1-1/2”
9-3/16”
(233)
2-3/4”
(70)
4-1/2”
(114)
2”
(51)
6”
(152)
—
1-3/8”
(35)
36.0
OX-6 OX-6M 2”
11-5/8”
(295)
3-3/8”
(85)
5-1/4”
(133)
2-9/16”
(65)
8-1/16”
(205)
—
1-5/8”
(41)
70.0
* For conduit body packaged with cover and gasket, add CG to the catalog number.
TB Type X Type