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3-4X1-4PTRB — REDUCER,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3-4X1-4PTRB: REDUCER,PIPE.

The REDUCER,PIPE is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: THREADED PIPE FITTINGS & ADAPTERS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-982-9418, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
3-4X1-4PTRB
NSN: 4730-00-982-9418
NIINs: 009829418, 010702031, 016184717
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyTHREADED PIPE FITTINGS & ADAPTERS
NSN4730-00-982-9418
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3-4X1-4PTRB · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERNAL SCREW THREAD SERIES DESIGNATOR: NPT
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
•
EXTERNAL SCREW THREAD SERIES DESIGNATOR: NPT
•
EXTERNAL THREAD SIZE: 3/4 IN.-14 IN
•
INTERNAL THREAD SIZE: 1/4 IN.-18 IN
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MATERIAL: COPPER ALLOY
•
WORKING PRESSURE AND SERVICE TYPE: 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS
TECHNICAL CHARACTERISTICS
INTERNAL SCREW THREAD SERIES DESIGNATORNPT
INTERNAL THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATOROUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
EXTERNAL SCREW THREAD SERIES DESIGNATORNPT
EXTERNAL THREAD SIZE3/4 IN.-14 IN
INTERNAL THREAD SIZE1/4 IN.-18 IN
MATERIALCOPPER ALLOY
WORKING PRESSURE AND SERVICE TYPE3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS LBS
EXTERNAL THREAD DIRECTIONRIGHT-HAND
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3-4X1-4PTRB?
3-4X1-4PTRB is a REDUCER,PIPE.
What is the NSN for 3-4X1-4PTRB?
3-4X1-4PTRB is cataloged in the U.S. Government catalog under NSN 4730-00-982-9418. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.