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3-4X1-4PTRS — Technical Data Sheet

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— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ADAPTER,STRAIGHT,PIPE TO HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, style_designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL), external_thread_size: 3/4-14, internal_thread_size: 1/4-18, external_thread_direction: RIGHT-HAND, internal_thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-278-3917, 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
3-4X1-4PTRS
NSN: 4730-00-278-3917
FSC: 4730
CAGE: 45681 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV CORPORATE HEADQUARTERS (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
style_designatorOUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
external_thread_size3/4-14
internal_thread_size1/4-18
external_thread_directionRIGHT-HAND
internal_thread_directionRIGHT-HAND
nondefinitive_spec/std_data42 FIGURE
specification/standard_data81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
external_screw_thread_series_designatorNPTF
internal_screw_thread_series_designatorNPTF
NSN4730-00-278-3917
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3-4X1-4PTRS · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
90709372InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8169005InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3-4X1-4PREDSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3/4X1/4PRT-SInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12-4 140140SInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SAE-J514InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-4X1-4PTRS?
3-4X1-4PTRS is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace 3-4X1-4PTRS?
There are 13 known substitutes for 3-4X1-4PTRS: 90709372, 8169005, 3-4X1-4PREDS and 10 more. Substitute compatibility should be verified for your specific system.
Is 3-4X1-4PTRS still available?
3-4X1-4PTRS is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026