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Technical Data Sheet
PartsTable / COMPONENT / AN840-11D
AN840-11D ✓ 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, operating_pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-222-1797, 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
AN840-11D
NSN: 4730-00-222-1797
FSC: 4730
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
connection_typeUNTHREADED EXTERNAL HOSE SECOND END
connection_stylePLAIN (PIPE) FIRST END
special_featuresCENTER WRENCHING FACILITY
surface_treatmentANODIZE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.375 INCHES FIRST END IN
maximum_operating_temp225.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length2.406 INCHES IN
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
NSN4730-00-222-1797
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN840-11D · 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
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE SECOND END
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
NOMINAL OVERALL LENGTH: 2.406 INCHES IN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.750 INCHES SECOND END IN
•
NOMINAL THREAD SIZE: 0.375 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALALUMINUM ALLOY OVERALL
CONNECTION TYPEUNTHREADED EXTERNAL HOSE SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL OVERALL LENGTH2.406 INCHES IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.750 INCHES SECOND END IN
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
SPECIFICATION/STANDARD DATA88044-AN840 GOVERNMENT STANDARD AND 81343-AS4843/2 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
12HLFDInterchangeable
interchangeable cross-reference
interchangeable
AS5183D1212Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS4843/2Interchangeable
interchangeable cross-reference
interchangeable
AS5183Interchangeable
interchangeable cross-reference
interchangeable
AN840-6Interchangeable
interchangeable cross-reference
interchangeable
6434Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN840-11D?
AN840-11D is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace AN840-11D?
There are 14 known substitutes for AN840-11D: 12HLFD, AS5183D1212, SAE-AS4843/2 and 11 more. Substitute compatibility should be verified for your specific system.
Is AN840-11D still available?
AN840-11D 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