How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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Compact Extreme-Pressure Steel Threaded Pipe Fittings
These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces. They are galvanized and zinc-plated steel, which have better corrosion resistance than plain steel fittings. UN/UNF (SAE Straight) threads are also known as O-ring boss threads; the male threads have either a gasket or a gasket and washer to prevent leaks.
For technical drawings and 3-D models, click on a part number.
Straight Reducing Adapters, Female × Male
UN/UNF
(SAE Straight) Male
Threads with Gasket
(SAE Straight) Male
Threads with Gasket
- For Use With: See table
- Specifications Met: See table
Thread Size | Dash Size | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
(A) | (B) | (A) | (B) | Lg. | Max. Pressure | Material | For Use With | Specifications Met | Each | |
UN/UNF (SAE Straight) Female × UN/UNF (SAE Straight) Male | ||||||||||
| 1 1/16"-12 | 1 5/8"-12 | 12 | 20 | 1" | 4,000 psi @ 72° F | Zinc Plated Steel | Air, Hydraulic Fluid, Water | ASTM A108 | 000000000 | 000000 |