PartsTable
Technical Data Sheet
12HLFD ✓ 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 ADAPTER,STRAIGHT,PIPE TO HOSE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, connection_type: UNTHREADED EXTERNAL HOSE SECOND END, connection_style: PLAIN (PIPE) FIRST END, special_features: CENTER WRENCHING FACILITY, surface_treatment: ANODIZE OVERALL, nominal_thread_size: 0.750 INCHES FIRST END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-222-1798, 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
12HLFD
NSN: 4730-00-222-1798
FSC: 4730
CAGE: 45681 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV CORPORATE HEADQUARTERS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
connection_typeUNTHREADED EXTERNAL HOSE SECOND END
connection_stylePLAIN (PIPE) FIRST END
special_featuresCENTER WRENCHING FACILITY
surface_treatmentANODIZE OVERALL
nominal_thread_size0.750 INCHES FIRST END IN
maximum_operating_temp225.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length2.625 INCHES IN
end_item_identificationAIRCRAFT APPLICATION
thread_series_designatorANPT FIRST END
specification/standard_data88044-AN840 GOVERNMENT STANDARD AND 81343-AS4843/2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_inside_diameter_hose_accommodated0.750 INCHES SECOND END IN
NSN4730-00-222-1798
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12HLFD · 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
SURFACE TREATMENT: ANODIZE OVERALL
THREAD SERIES DESIGNATOR: ANPT FIRST END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.750 INCHES SECOND END IN
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
MAXIMUM OPERATING TEMP: 225.0 FAHRENHEIT SINGLE RESPONSE DEGF
NOMINAL OVERALL LENGTH: 2.625 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTANODIZE OVERALL
THREAD SERIES DESIGNATORANPT FIRST END
SPECIAL FEATURESCENTER WRENCHING FACILITY
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.750 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
END ITEM IDENTIFICATIONAIRCRAFT APPLICATION
MAXIMUM OPERATING TEMP225.0 FAHRENHEIT SINGLE RESPONSE DEGF
NOMINAL OVERALL LENGTH2.625 INCHES IN
MATERIALALUMINUM ALLOY OVERALL
CONNECTION TYPEUNTHREADED EXTERNAL HOSE SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
634Interchangeable
interchangeable cross-reference
interchangeable
634-15639Interchangeable
interchangeable cross-reference
interchangeable
631Interchangeable
interchangeable cross-reference
interchangeable
AN840-11DInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
AS5183Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12HLFD?
12HLFD is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace 12HLFD?
There are 18 known substitutes for 12HLFD: 634, 634-15639, 631 and 15 more. Substitute compatibility should be verified for your specific system.
Is 12HLFD still available?
12HLFD is currently cancelled.
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