Stainless Steel ORB Female × NPT Male Connector
Stainless Steel ORB Female × NPT Male Connector in 316L stainless steel, forged. 8 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 connector
- 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 connector
- 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 Stainless Steel ORB Female × NPT Male Connector is a straight connector in 316L stainless steel, forged from one piece. It carries an SAE O-ring boss (ORB) female end and an NPT male end. Stainless steel is chosen where corrosion rules out zinc-plated carbon steel: offshore and marine lines, chemical, fertiliser and petroleum plant, and food, beverage and pharmaceutical process equipment.
Construction
- Body: straight connector
- End 1: SAE O-ring boss (ORB) female
- End 2: NPT male
- Material: 316L stainless steel, forged
Ends and sealing
- SAE O-ring boss (ORB): SAE straight-thread port sealed by an O-ring under the hex; SAE J1926 / ISO 11926.
- NPT: taper pipe thread that seals on the thread flanks, with sealant or tape; ASME B1.20.1.
Sizes
8 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: 1/4" ORB (7/16-20) to 1-1/2" ORB (1-7/8-12)
- End 2: 1/4" NPT (1/4-18) to 1-1/2" NPT (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 8 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.
Carbon-steel version
The same configuration in zinc-plated carbon steel: Steel ORB Female × NPTF Male Adapter.
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 the material, and Indus engineering will confirm the part number. Price and lead time are confirmed with the quotation.
Identification
| Parameter | Value |
|---|---|
| Body Configuration | straight connector |
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 | NPT, 1/4" to 1-1/2" (1/4-18 to 1-1/2-11.5) |
| Port B Sealing | taper pipe thread that seals on the thread flanks, with sealant or tape |
| 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 | 316L stainless steel, forged |
Compliance
| Parameter | Value |
|---|---|
| Applicable Standards | SAE J1926, ISO 11926, ASME B1.20.1 |
Shipping & lead time
Sizes & part numbers
8 sizesEquivalent to Parker 1/4-# FHG5-SS / 1/2-# FHG5-SS. 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-SS-6404-04-04 | 1/4-4 FHG5-SS | 1/4" ORB (7/16-20) | 1/4" NPT (1/4-18) | 17.5 | 7.1 | 33.5 |
| IH-SS-6404-06-06 | 3/8-6 FHG5-SS | 3/8" ORB (9/16-18) | 3/8" NPT (3/8-18) | 22.2 | 10.3 | 35.6 |
| IH-SS-6404-08-08 | 1/2-8 FHG5-SS | 1/2" ORB (3/4-16) | 1/2" NPT (1/2-14) | 25.4 | 13.5 | 42.9 |
| IH-SS-6404-10-08 | — | 5/8" ORB (7/8-14) | 1/2" NPT (1/2-14) | 28.6 | 13.5 | 46.2 |
| IH-SS-6404-12-12 | 3/4-12 FHG5-SS | 3/4" ORB (1-1/16-12) | 3/4" NPT (3/4-14) | 34.9 | 18.3 | 49.8 |
| IH-SS-6404-16-16 | 1-16 FHG5-SS | 1" ORB (1-5/16-12) | 1" NPT (1-11.5) | 41.3 | 23.8 | 56.4 |
| IH-SS-6404-20-20 | 1 1/4-20 FHG5-SS | 1-1/4" ORB (1-5/8-12) | 1-1/4" NPT (1-1/4-11.5) | — | — | — |
| IH-SS-6404-24-24 | — | 1-1/2" ORB (1-7/8-12) | 1-1/2" NPT (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-SS, 1/2-# FHG5-SS, 3/4-# FHG5-SS, 3/8-# FHG5-SS, FHG5-SS | 6 |
What is it made from?▾
Which sizes are available?▾
What pressure is it rated to?▾
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Can I match a Parker part number?▾
Is there a carbon-steel version?▾
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Shipped worldwide from our Dubai warehouse. Transit, routes and documentation for 126 destinations
The same part, in the designations used across European and Gulf trade catalogues.
- de
- Adapter O-Ring Boss (ORB) Innengewinde auf NPT Außengewinde
- fr
- adaptateur O-Ring Boss (ORB) femelle sur NPT mâle
- es
- adaptador O-Ring Boss (ORB) hembra a NPT macho
- it
- adattatore O-Ring Boss (ORB) femmina a NPT maschio
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