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Technical Data Sheet
PartsTable / COMPONENT / 4-190909-1/4-6
4-190909-1/4-6 ✓ 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 4-190909-1/4-6 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-928-4523, 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
4-190909-1/4-6
NSN: 4730-00-928-4523
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
Part Number4-190909-1/4-6
NSN4730-00-928-4523
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-190909-1/4-6 · 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
•
THREAD QUANTITY PER INCH: 12 SECOND END
•
FURNISHED ITEMS AND QUANTITY: 1 SOCKET
•
NOMINAL OVERALL LENGTH: 2.375 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CONNECTION STYLE: GRIPPING NIPPLE (NOSE) FIRST END
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 0.844 INCHES FIRST END IN
•
MATERIAL: NICKEL ALLOY A OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH12 SECOND END
FURNISHED ITEMS AND QUANTITY1 SOCKET
NOMINAL OVERALL LENGTH2.375 INCHES IN
CRITICALITY CODE JUSTIFICATIONZZZY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLEGRIPPING NIPPLE (NOSE) FIRST END
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED0.844 INCHES FIRST END IN
MATERIALNICKEL ALLOY A OVERALL
CONNECTION STYLEGASKET SEAL (HOSE) SECOND END
CONNECTION TYPETHREADED EXTERNAL HOSE SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MIL-DTL-24787/3Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-24787/3Interchangeable
interchangeable cross-reference
interchangeable
GROUP 1 TYPE CInterchangeable
interchangeable cross-reference
interchangeable
4-190909-1/4-6L1Interchangeable
Same NIIN cross-reference
interchangeable
MIL-F-24787/3 TYPE C GROUP 1L1Interchangeable
Same NIIN cross-reference
interchangeable
MIL-H-24135L1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-190909-1/4-6?
4-190909-1/4-6 is a 4-190909-1/4-6.
What parts can replace 4-190909-1/4-6?
There are 7 known substitutes for 4-190909-1/4-6: MIL-DTL-24787/3, MIL-F-24787/3, GROUP 1 TYPE C and 4 more. Substitute compatibility should be verified for your specific system.
Is 4-190909-1/4-6 still available?
4-190909-1/4-6 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