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4-190909-1 1/2-32 — 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,HOSE TO BOSS is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, thread_class: 2A SECOND END A, connection_type: THREADED EXTERNAL HOSE GRIPPING FIRST END, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END, operating_pressure: 1125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 3.062 INCHES SECOND END IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-00-851-6136, 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 1/2-32
NSN: 4730-00-851-6136
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
thread_class2A SECOND END A
connection_typeTHREADED EXTERNAL HOSE GRIPPING FIRST END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
operating_pressure1125.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size3.062 INCHES SECOND END IN
maximum_operating_temp200.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length5.344 INCHES IN
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_quantity_per_inch32 SECOND END
thread_series_designatorUN SECOND END
furnished_items_and_quantity1 PREFORMED PACKING
NSN4730-00-851-6136
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-190909-1 1/2-32 · 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
•
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED: 2.750 INCHES FIRST END IN
•
NOMINAL OVERALL LENGTH: 5.340 INCHES IN
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: QUALITY CONTROL IZW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEM
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
•
NOMINAL THREAD SIZE: 3.062 INCHES SECOND END IN
•
THREAD SERIES DESIGNATOR: UNS SECOND END
TECHNICAL CHARACTERISTICS
NOMINAL OUTSIDE DIAMETER HOSE ACCOMMODATED2.750 INCHES FIRST END IN
NOMINAL OVERALL LENGTH5.340 INCHES IN
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSQUALITY CONTROL IZW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTIONS FOR LEVEL 1 ITEM
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
NOMINAL THREAD SIZE3.062 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL HOSE GRIPPING FIRST END
THREAD SERIES DESIGNATORUNS SECOND END
CRITICALITY CODE JUSTIFICATIONZZZY
FURNISHED ITEMS AND QUANTITY1 SOCKET
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
MIL-F-24787/3 GRI TY CInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MIL-F-2487/3 GRI TY CInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FH9044-2432-4InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
4-190909-1 1/2-32L1InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
MILH24135L1InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
MILH24135InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-190909-1 1/2-32?
4-190909-1 1/2-32 is a ADAPTER,STRAIGHT,HOSE TO BOSS.
What parts can replace 4-190909-1 1/2-32?
There are 6 known substitutes for 4-190909-1 1/2-32: MIL-F-24787/3 GRI TY C, MIL-F-2487/3 GRI TY C, FH9044-2432-4 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-190909-1 1/2-32?
4-190909-1 1/2-32 is cataloged in the Federal Logistics Information System under NSN 4730-00-851-6136. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: September 2026