Shop 5404-N Straight Male NPT - Male NPT Long Pipe Nipple
SAE 140137
The Series 5404-N Straight Male NPT x Male NPT Long Pipe Nipple hydraulic adapters, made from durable carbon steel, are designed to provide secure connections for fluid and gas transfer in hydraulic systems. Available in varying lengths, these adapters utilize the National Pipe Taper (NPT) standard, which features tapered threads that ensure a reliable seal through thread deformation, creating a strong metal-to-metal connection when tightened. The nominal pipe size can be easily identified by measuring the thread diameter and subtracting 1/4". With over 100 years of use in the U.S., NPT connections are a trusted choice for a wide range of applications; however, they are best suited for single assembly applications and are not recommended for frequent disassembly due to potential wear on the threads. The long pipe nipple design offers flexibility in installation, making these adapters an excellent option for professionals seeking efficient and dependable hydraulic solutions.
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Straight MNPT - MNPT Rigid Long Pipe Nipple
1/4" to 1.5" Nominal Tube OD
Carbon Steel
Click HERE to view the entire 5404-N Straight Carbon Steel MNPT-MNPT Long Nipple Selection
Click HERE to view the entire 5404-N-SS Straight Stainless Steel MNPT-MNPT Long Nipple Selection
Click HERE to view the entire 5404-N-SS Straight Brass MNPT-MNPT Long Nipple Selection
Shop 5404-N Straight Male NPT - Male NPT Long Pipe Nipple
Click on the model number in the chart below to view that adapter.
Need Stainless Steel? Click HERE for our Stainless 5404-N-SS Series Adapters. All adapters may not be available in stainless.
| Product SKU ▼ | Brand ▼ | Material ▼ | Male NPT Threads ▼ | Male NPT Threads ▼ | Length ▼ | Lead Time ▼ | Price ▼ |
|---|---|---|---|---|---|---|---|
| 5404-N-04X3.500 | OneHydraulics | Steel | 1/4-18 (-04) | 1/4-18 (-04) | 3.5" | 1-3 Days | $6.00 |
| 5404-N-04X4.000 | OneHydraulics | Steel | 1/4-18 (-04) | 1/4-18 (-04) | 4.00" | 1-3 Days | $7.03 |
| 5404-N-04X4.500 | OneHydraulics | Steel | 1/4-18 (-04) | 1/4-18 (-04) | 4.50" | 1-3 Days | $7.18 |
| 5404-N-04X5.000 | OneHydraulics | Steel | 1/4-18 (-04) | 1/4-18 (-04) | 5.00" | 1-3 Days | $19.99 |
| 5404-N-04X5.500 | OneHydraulics | Steel | 1/4-18 (-04) | 1/4-18 (-04) | 5.50" | 1-3 Days | $7.14 |
| 5404-N-04X6.000 | OneHydraulics | Steel | 1/4-18 (-04) | 1/4-18 (-04) | 6.00" | 1-3 Days | $10.52 |
| 5404-N-06X1.000 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 1.00" | 1-3 Days | $5.92 |
| 5404-N-06X1.500 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 1.50" | 1-3 Days | $12.12 |
| 5404-N-06X2.000 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 2.00" | 1-3 Days | $7.66 |
| 5404-N-06X2.500 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 2.50" | 1-3 Days | $8.95 |
| 5404-N-06X3.000 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 3.00" | 1-3 Days | $9.17 |
| 5404-N-06X4.000 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 4.00" | 1-3 Days | $8.47 |
| 5404-N-06X5.000 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 5.00" | 1-3 Days | $7.54 |
| 5404-N-06X6.000 | OneHydraulics | Steel | 3/8-18 (-06) | 3/8-18 (-06) | 6.00" | 1-3 Days | $9.22 |
| 5404-N-08X1.125 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 1.125" | Same Day | $6.13 |
| 5404-N-08X1.250 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 1.25" | 1-3 Days | $6.74 |
| 5404-N-08X1.375 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 1.375" | 1-3 Days | $8.33 |
| 5404-N-08X1.500 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 1.50" | 1-3 Days | $12.83 |
| 5404-N-08X1.750 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 1.75" | 1-3 Days | $13.32 |
| 5404-N-08X2.000 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 2.00" | 1-3 Days | $14.25 |
| 5404-N-08X2.250 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 2.25" | 1-3 Days | $14.57 |
| 5404-N-08X2.500 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 2.50" | 1-3 Days | $9.22 |
| 5404-N-08X3.000 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 3.00" | 1-3 Days | $8.95 |
| 5404-N-08X3.500 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 3.50" | 1-3 Days | $11.53 |
| 5404-N-08X4.000 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 4.00" | 1-3 Days | $13.90 |
| 5404-N-08X4.500 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 4.50" | 1-3 Days | $11.53 |
| 5404-N-08X5.000 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 5.00" | 1-3 Days | $9.22 |
| 5404-N-08X6.000 | OneHydraulics | Steel | 1/2-14 (-08) | 1/2-14 (-08) | 6.00" | 1-3 Days | $18.55 |
| 5404-N-12X1.375 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 1.375" | 1-3 Days | $7.20 |
| 5404-N-12X1.500 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 1.50" | 1-3 Days | $7.42 |
| 5404-N-12X2.000 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 2.00" | 1-3 Days | $10.92 |
| 5404-N-12X2.500 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 2.50" | 1-3 Days | $11.92 |
| 5404-N-12X3.000 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 3.00" | 1-3 Days | $16.95 |
| 5404-N-12X3.500 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 3.50" | 1-3 Days | $21.93 |
| 5404-N-12X4.000 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 4.00" | 1-3 Days | $22.32 |
| 5404-N-12X4.500 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 4.50" | 1-3 Days | $31.50 |
| 5404-N-12X5.000 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 5.00" | 1-3 Days | $31.65 |
| 5404-N-12X5.500 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 5.50" | 1-3 Days | $32.95 |
| 5404-N-12X6.000 | OneHydraulics | Steel | 3/4-14 (-12) | 3/4-14 (-12) | 6.00" | 1-3 Days | $23.47 |
| 5404-N-16X1.500 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 1.50" | 1-3 Days | $10.60 |
| 5404-N-16X2.000 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 2.00" | 1-3 Days | $26.63 |
| 5404-N-16X2.500 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 2.50" | 1-3 Days | $35.30 |
| 5404-N-16X3.000 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 3.00" | 1-3 Days | $23.43 |
| 5404-N-16X3.500 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 3.50" | 1-3 Days | $18.37 |
| 5404-N-16X4.000 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 4.00" | 1-3 Days | $18.38 |
| 5404-N-16X4.500 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 4.50" | 1-3 Days | $22.42 |
| 5404-N-16X5.000 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 5.00" | 1-3 Days | $23.75 |
| 5404-N-16X5.500 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 5.50" | 1-3 Days | $28.13 |
| 5404-N-16X6.000 | OneHydraulics | Steel | 1-11 1/2 (-16) | 1-11 1/2 (-16) | 6.00" | 1-3 Days | $33.93 |
| 5404-N-20X1.500 | OneHydraulics | Steel | 1-1/4-11 1/2 (-20) | 1-1/4-11 1/2 (-20) | 1.50" | 1-3 Days | $21.15 |
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Items in this collection are equivalent or similar to Series Aeroquip 2084, Flodar PF102, Parker Tube FFF, SSP HN, United Tech 911.
See the chart below for additional Dimensional Detail & Pressure Ratings
Still need help? Give us a call at 281.941.2310 or email us at sales@onehydraulics.com for technical support.