Steel ORB Female × NPTF Male Adapter
Steel ORB Female × NPTF Male Adapter, forged carbon steel, trivalent zinc plated. 18 part numbers, 1/4" to 1-1/2"; the size table gives the size on each end, dimensions in millimetres and the Parker equivalent for every Indus part number.
Key features
- Body Configuration: straight adapter
- Port A Thread: SAE O-ring boss (ORB), 1/4" to 1-1/2" (7/16-20 to 1-7/8-12)
- Port A Sealing: SAE straight-thread port sealed by an O-ring under the hex
- Nominal Size Range: 1/4" to 1-1/2"
- Max Working Pressure: Up to 5,000 psi, falling with size (SAE J514, manufacturer); see the table
- Body Configuration
- straight adapter
- Port A Thread
- SAE O-ring boss (ORB), 1/4" to 1-1/2" (7/16-20 to 1-7/8-12)
- Port A Sealing
- SAE straight-thread port sealed by an O-ring under the hex
Product description
The Steel ORB Female × NPTF Male Adapter is a straight adapter, in forged carbon steel, trivalent zinc plated. Its ends are SAE O-ring boss (ORB) female and NPTF (Dryseal) male. O-ring boss ports are the standard straight-thread port on US-built pumps, valves and cylinders.
Construction
- Body: straight adapter
- End 1: SAE O-ring boss (ORB) female
- End 2: NPTF (Dryseal) male
- Material: forged carbon steel, trivalent zinc plated
- O-ring: NBR (Buna-N)
Ends and sealing
- SAE O-ring boss (ORB): SAE straight-thread port sealed by an O-ring under the hex; SAE J1926 / ISO 11926.
- NPTF (Dryseal): Dryseal taper pipe thread, cut so the crests and roots close up as the joint is tightened, so it seals on the thread; ASME B1.20.3.
Sizes
18 part numbers, 1/4" to 1-1/2". The Sizes & Part Numbers tab lists the size on each end, dimensions in millimetres and the Parker equivalent for every one.
- End 1: SAE O-ring boss (ORB), 1/4" to 1-1/2" (7/16-20 to 1-7/8-12)
- End 2: NPTF (Dryseal), 1/8" to 1-1/2" (1/8-27 to 1-1/2-11.5)
Pressure rating
Manufacturer's published ratings (SAE J514), from 1,000 to 5,000 psi depending on size and end:
| Nom. SAE Dash Size | Nom. Tube O.D. Inches | 37 Degree Flare Straight Thread | Nom. Pipe Size | SAE St. Threads Union & Bulkhead (PSI) | Fittings With Pipe Threads (PSI) |
|---|---|---|---|---|---|
| 2 | 1/8 | 5/16-24 | 1/8 | 5000 | 5000 |
| 3 | 3/16 | 3/8-24 | 1/8 | 5000 | 5000 |
| 4 | 1/4 | 7/16-20 | 1/8 | 5000 | 5000 |
| 5 | 5/16 | 1/2-20 | 1/8 | 5000 | 5000 |
| 6 | 3/8 | 9/16-18 | 1/4 | 5000 | 5000 |
| 8 | 1/2 | 3/4-16 | 3/8 | 4500 | 4000 |
| 10 | 5/8 | 7/8-14 | 1/2 | 3500 | 3000 |
| 12 | 3/4 | 1 1/16-12 | 3/4 | 3500 | 3000 |
| 14 | 7/8 | 1 3/16-12 | 3/4 | 3000 | 2500 |
| 16 | 1 | 1 5/16-12 | 1 | 3000 | 2000 |
| 20 | 1 1/4 | 1 5/8-12 | 1 1/4 | 2500 | 1150 |
| 24 | 1 1/2 | 1 7/8-12 | 1 1/2 | 2000 | 1000 |
| 32 | 2 | 2 1/2-12 | 2 | 1500 | 1000 |
| NOTE: Since many factors influence the pressure at which a system will or will not perform satisfactory, values shown in this table should not be construed as guaranteed minimum. |
Parker equivalents
For 6 of the 18 sizes the size table gives the Parker part number the manufacturer cross-references, so a part number taken off existing equipment can be matched to the Indus part number.
Stainless-steel version
The same configuration in 316 stainless steel: Stainless Steel ORB Female × NPT Male Connector.
How to order
Quote the Indus part number from the size table. If you only have the fitting, send the thread or tube size on each end, and Indus engineering will confirm the part number. Price and lead time are confirmed with the quotation.
Identification
| Parameter | Value |
|---|---|
| Body Configuration | straight adapter |
Port A
| Parameter | Value |
|---|---|
| Port A Thread | SAE O-ring boss (ORB), 1/4" to 1-1/2" (7/16-20 to 1-7/8-12) |
| Port A Sealing | SAE straight-thread port sealed by an O-ring under the hex |
| Port A Gender | female |
Port B
| Parameter | Value |
|---|---|
| Port B Thread | NPTF (Dryseal), 1/8" to 1-1/2" (1/8-27 to 1-1/2-11.5) |
| Port B Sealing | Dryseal taper pipe thread, cut so the crests and roots close up as the joint is tightened, so it seals on the thread |
| Port B Gender | male |
Dimensions
| Parameter | Value |
|---|---|
| Nominal Size Range | 1/4" to 1-1/2" |
Performance
| Parameter | Value |
|---|---|
| Max Working Pressure | Up to 5,000 psi, falling with size (SAE J514, manufacturer); see the table |
Construction
| Parameter | Value |
|---|---|
| Material | forged carbon steel, trivalent zinc plated |
Compliance
| Parameter | Value |
|---|---|
| Applicable Standards | SAE J1926, ISO 11926, ASME B1.20.3 |
Shipping & lead time
Sizes & part numbers
18 sizesEquivalent to Parker 1/4-# FHG5 / 1/2-# FHG5. Every size below prints its equivalent part number beside ours — quote either.
| Indus part no. | Parker equivalent | End 1 | End 2 | Y (mm) | D (mm) | L (mm) |
|---|---|---|---|---|---|---|
| IH-ST-6404-04-02 | — | 1/4" ORB (7/16-20) | 1/8" NPTF (1/8-27) | 17.5 | 4.8 | 28.7 |
| IH-ST-6404-04-04 | 1/4-4 FHG5 | 1/4" ORB (7/16-20) | 1/4" NPTF (1/4-18) | 17.5 | 7.1 | 33.5 |
| IH-ST-6404-05-02 | — | 5/16" ORB (1/2-20) | 1/8" NPTF (1/8-27) | 19 | 4.8 | 34.8 |
| IH-ST-6404-05-04 | — | 5/16" ORB (1/2-20) | 1/4" NPTF (1/4-18) | — | — | — |
| IH-ST-6404-05-06 | — | 5/16" ORB (1/2-20) | 3/8" NPTF (3/8-18) | — | — | — |
| IH-ST-6404-06-04 | — | 3/8" ORB (9/16-18) | 1/4" NPTF (1/4-18) | 22.2 | 7.1 | 40.4 |
| IH-ST-6404-06-06 | 3/8-6 FHG5 | 3/8" ORB (9/16-18) | 3/8" NPTF (3/8-18) | 22.2 | 10.3 | 35.6 |
| IH-ST-6404-06-08 | — | 3/8" ORB (9/16-18) | 1/2" NPTF (1/2-14) | 22.2 | 13.5 | 36.8 |
| IH-ST-6404-08-06 | — | 1/2" ORB (3/4-16) | 3/8" NPTF (3/8-18) | 25.4 | 10.3 | 38.1 |
| IH-ST-6404-08-08 | 1/2-8 FHG5 | 1/2" ORB (3/4-16) | 1/2" NPTF (1/2-14) | 25.4 | 13.5 | 42.9 |
| IH-ST-6404-10-06 | — | 5/8" ORB (7/8-14) | 3/8" NPTF (3/8-18) | — | — | — |
| IH-ST-6404-10-08 | — | 5/8" ORB (7/8-14) | 1/2" NPTF (1/2-14) | 28.6 | 13.5 | 46.2 |
| IH-ST-6404-12-12 | 3/4-12 FHG5 | 3/4" ORB (1-1/16-12) | 3/4" NPTF (3/4-14) | 34.9 | 18.3 | 49.8 |
| IH-ST-6404-16-04 | — | 1" ORB (1-5/16-12) | 1/4" NPTF (1/4-18) | — | — | — |
| IH-ST-6404-16-16 | 1-16 FHG5 | 1" ORB (1-5/16-12) | 1" NPTF (1-11.5) | 41.3 | 23.8 | 56.4 |
| IH-ST-6404-16-20 | — | 1" ORB (1-5/16-12) | 1-1/4" NPTF (1-1/4-11.5) | — | — | — |
| IH-ST-6404-20-20 | 1 1/4-20 FHG5 | 1-1/4" ORB (1-5/8-12) | 1-1/4" NPTF (1-1/4-11.5) | — | — | — |
| IH-ST-6404-24-24 | — | 1-1/2" ORB (1-7/8-12) | 1-1/2" NPTF (1-1/2-11.5) | — | — | — |
End 1 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. End 2 — Thread or flange nominal size at this end, exactly as the manufacturer prints it. Y — Hex across flats — printed "Y HEX" on the manufacturer drawing. D — Dimension D on the manufacturer dimension drawing. L — Dimension L on the manufacturer dimension drawing. Ask us for the dimension drawing if you need it stamped.
Every size is available in 316 stainless steel on request — add “-SS” to the part number when you enquire.
Indus Hydraulics is not affiliated with Parker. Parker part numbers are shown for cross-reference only, so you can order from an existing bill of materials.
This listing is matched size by size to the series below. The size table gives the exact equivalent part number for every Indus part number.
| Maker / standard | Series | Sizes matched |
|---|---|---|
| Parker | 1/4-# FHG5, 1/2-# FHG5, 3/4-# FHG5, 3/8-# FHG5, FHG5 | 6 |
What is it made from?▾
Which sizes are available?▾
What pressure is it rated to?▾
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