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1/4" Pipe Thread Grease Fittings
The H-300 series is used for heavy industrial equipment and large bearings,especially recommended where heavy lubricants are used . The outside diameter of the threads is 0.540". 1/4" PTF Grease Fittings are also referred to as 1/4" PTF Zerk Fittings, 1/4" PTF Lubrication Fittings, and 1/4" PTF Hydraulic Fittings.
| SAE Number | Description | FIG |
A |
B |
X |
Alemite
# |
Lincoln
# |
| H-300 | 1/4"-PTF | 1 |
53/64" |
3/8" |
9/16" |
1627-B |
5050 |
| H-365 | 1/4"-PTF 65 DEGREE | 3 |
1-1/16" |
3/8" |
9/16" |
1629-B |
5350 |
| H-390 | 1/4"-PTF 90 DEGREE | 4 |
15/16" |
3/8" |
9/16" |
1629-C |
N/A |
.