Cut Sheet

Rigid and Intermediate Metal Conduit Fittings
A-21
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.com
CAT. NO. TRADE SIZE (IN.)
Bulkhead Fitting
H050BHD
1
⁄2
H075BHD
3
⁄4
H100BHD 1
H125BHD 1
1
⁄4
H150BHD 1
1
⁄2
H200BHD 2
H250BHD 2
1
⁄2
H300BHD 3
H350BHD 3
1
⁄2
H400BHD 4
H500BHD 5
H600BHD 6
Thru Bulkhead Fitting
H050TBF
1
⁄2
H075TBF
3
⁄4
H100TBF 1
H125TBF 1
1
⁄4
H150TBF 1
1
⁄2
H200TBF 2
Thru Bulkhead Hub
H050TBH
1
⁄2
H075TBH
3
⁄4
H100TBH 1
H125TBH 1
1
⁄4
H150TBH 1
1
⁄2
H200TBH 2
Across Flats
Height
Diameter
Thread
Nipple Nut
Not Included
Nipple Nut
Not Included
T&B Bulkhead Fittings
TRADE ACROSS
SIZE THREAD HEIGHT DIAMETER FLATS A (IN.) B (IN.)
1
⁄2"
1
⁄2"–14" 1
13
⁄32"1
7
⁄16"1"
3
⁄4
1
⁄2
3
⁄4"
3
⁄4"–14" 1
15
⁄32"1
11
⁄16"1
1
⁄4"
25
⁄32
17
⁄32
1" 1"–11
1
⁄2"1
11
⁄16"2" 1
17
⁄32"
29
⁄32
19
⁄32
1
1
⁄4"1
1
⁄4"–11
1
⁄2"1
25
⁄32"2
3
⁄8"1
27
⁄32"
29
⁄32
21
⁄32
1
1
⁄2"1
1
⁄2"–11
1
⁄2"1
13
⁄16"2
3
⁄4"1
1
⁄8"
29
⁄32
21
⁄32
2" 2"–11
1
⁄2"1
27
⁄32"3
1
⁄4"2
5
⁄8"
15
⁄16
21
⁄32
2
1
⁄2"2
1
⁄2"–8" 2
9
⁄32"3
3
⁄4"3
1
⁄8"1
7
⁄32
7
⁄8
3" 3"–8" 2
9
⁄16"4
3
⁄8"3
25
⁄32"1
3
⁄16
29
⁄32
3
1
⁄2"3
1
⁄2"–8" 2
9
⁄16"5" 4
9
⁄32"1
3
⁄8
7
⁄8
4" 4"–8" 2
9
⁄16"5
1
⁄2"4
27
⁄32"1
3
⁄8
7
⁄8
5" 5"-8" 2
23
⁄32"6
5
⁄8"5
29
⁄32"1
15
⁄32
7
⁄8
6" 6"–8" 3" 7
11
⁄16"7
1
⁄32"1
1
⁄2
31
⁄32
Material — Hub, Body and Locknut: Zinc or copper-free aluminum
Insulating Throat: Thermoplastic temp. rating – 105° C
Flammability Rating – 94V-0
Sealing Ring: Nitrile (BUNA “N”)
For Aluminum Bulkheads add suffix A.
For Chrome-Plated Bulkheads
add suffix CP.
Meets NEMA sealing requirements
for NEMA 3R. 4 & 13 enclosures.
CSA Certified for hazardous locations
Class II Groups E.F.G. Class III.
UL File No. E-3060
CSA File No. 4484
Bulkhead Fitting
Thru Bulkhead Fitting
Thru Bulkhead Hub
A
B
NPT THREAD
NPSL THREAD