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Technical Data Sheet
PartsTable / COMPONENT / 4-190909 1-1/2
4-190909 1-1/2 ✓ Verified by PartsTable
— · 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 4-190909 1-1/2 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-138-5937, 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
4-190909 1-1/2
NSN: 4730-01-138-5937
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
Part Number4-190909 1-1/2
NSN4730-01-138-5937
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-190909 1-1/2 · 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
•
CONNECTION TYPE: THREADED EXTERNAL HOSE GRIPPING FIRST END
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 1.500 INCHES FIRST END IN
•
MATERIAL: NICKEL ALLOY NIPPLE
•
THREAD QUANTITY PER INCH: 12 SECOND END
•
NOMINAL OVERALL LENGTH: 5.340 INCHES IN
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING FIRST END
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED1.500 INCHES FIRST END IN
MATERIALNICKEL ALLOY NIPPLE
THREAD QUANTITY PER INCH12 SECOND END
MATERIALSTEEL SOCKET
NOMINAL OVERALL LENGTH5.340 INCHES IN
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL THREAD SIZE3.062 INCHES SECOND END IN
THREAD CLASS3A SECOND END A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
4-190909 3-8 8Interchangeable
interchangeable cross-reference
interchangeable
MIL-H-24135Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787/3 GRI TY CInterchangeable
interchangeable cross-reference
interchangeable
4-190909Interchangeable
interchangeable cross-reference
interchangeable
4-190909-3/4-16Interchangeable
interchangeable cross-reference
interchangeable
CMC-4-5602-3/4-16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-190909 1-1/2?
4-190909 1-1/2 is a 4-190909 1-1/2.
What parts can replace 4-190909 1-1/2?
There are 9 known substitutes for 4-190909 1-1/2: 4-190909 3-8 8, MIL-H-24135, MIL-F-24787/3 GRI TY C and 6 more. Substitute compatibility should be verified for your specific system.
Is 4-190909 1-1/2 still available?
4-190909 1-1/2 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: July 2026