General Purpose-Push to Connect Pneumatic Quick Couplers | Male Pipe Thread | Parker HF Series Couplers
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COUPLERS Sizes 1/8" Go to Parker HF Series Male Pipe Thread Nipples Select Another Pneumatic QC |
Specifications for Parker HF Series - 1/8" Male Pipe Thread Couplers
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Body Size (in.) |
New Part No. Brass |
Thread Size NPTF |
Dimensions (in.) |
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Overall Length A |
Wrench Flats B |
Largest Diameter C |
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1/8 |
HF-121-2MP |
1/8-27 |
1.50 |
0.55 |
0.63 |
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1/8 |
HF-121-4MP |
1/4-18 |
1.61 |
0.55 |
0.63 |
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COUPLERS Sizes 1/4 - 1/2" Select Another Pneumatic QC |
Specifications for Parker HF Series - 1/4", 3/8", 1/2" Male Pipe Thread Couplers
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Body Size (in.) |
New Part No. Brass |
Old Part No. Brass |
Thread Size NPTF |
Dimensions (in.) |
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Overall Length A |
Wrench Flats B |
Largest Diameter C |
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1/4 |
HF-251-4MP |
HF304M-4 |
1/4-18 |
2.34 |
0.81 |
0.99 |
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1/4 |
HF-251-6MP |
HF304M-6 |
3/8-18 |
2.37 |
0.81 |
0.99 |
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3/8 |
HF-371-4MP |
HF306M-4 |
1/4-18 |
2.49 |
0.94 |
1.07 |
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3/8 |
HF-371-6MP |
HF306M-6 |
3/8-18 |
2.52 |
0.94 |
1.07 |
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3/8 |
HF-371-8MP |
HF306M-8 |
1/2-14 |
2.68 |
0.94 |
1.07 |
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1/2 |
HF-501-8MP |
– |
1/2-14 |
3.48 |
1.06 |
1.19 |
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Body Size (in.) |
1/8 |
1/4 |
3/8 |
1/2 |
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Rated Pressure (psi) |
250 |
300 |
300 |
300 |
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Temperature Range (Std. seals) |
-40° to +250°F |
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Locking Device |
5 balls |
4 balls |
6 balls |
8 balls |
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Vacuum Data (inches Hg) Disconnected (coupler only) Connected |
Not Recommended |
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- |
27.4 |
27.4 |
27.4 |
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Orders & Quotes
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WARNING: These products can expose you to chemicals including lead and/or DEHP and/or carbon black, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
