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Technical Data Sheet
PartsTable / COMPONENT / AS4861D03
AS4861D03 ✓ 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 BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024, style_designator: OUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL), surface_treatment: ANODIZE, external_thread_size: 3/8-18, internal_thread_size: 1/8-27, external_thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-194-0205, 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
AS4861D03
NSN: 4730-00-194-0205
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024
style_designatorOUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
surface_treatmentANODIZE
external_thread_size3/8-18
internal_thread_size1/8-27
external_thread_directionRIGHT-HAND
internal_thread_directionRIGHT-HAND
specification/standard_data81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 88044-AN912 GOVERNMENT STANDARD
working_temp_and_service_type225.0 DEG FAHRENHEIT NOMINAL LIQUID AND 225.0 DEG FAHRENHEIT NOMINAL HYDRAULIC OIL AND 225.0 DEG FAHRENHEIT NOMINAL OXYGEN
working_pressure_and_service_type3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL LIQUID AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL HYDRAULIC OIL AND 3000.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OXYGEN LBS
material_document_and_classificationQQ-A-225/4, ALLOY 2014, T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6, ALLOY 2024, T851 FED SPEC 2ND MATERIAL RESPONSE
external_screw_thread_series_designatorANPT
NSN4730-00-194-0205
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS4861D03 · 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
•
EXTERNAL THREAD SIZE: 3/8-18
•
SURFACE TREATMENT: ANODIZE
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/4, ALLOY 2014, T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6, ALLOY 2024, T851 FED SPEC 2ND MATERIAL RESPONSE
•
MATERIAL: ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024
•
SPECIFICATION/STANDARD DATA: 81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 88044-AN912 GOVERNMENT STANDARD
•
WORKING TEMP AND SERVICE TYPE: 225.0 DEG FAHRENHEIT NOMINAL LIQUID AND 225.0 DEG FAHRENHEIT NOMINAL HYDRAULIC OIL AND 225.0 DEG FAHRENHEIT NOMINAL OXYGEN
•
INTERNAL SCREW THREAD SERIES DESIGNATOR: ANPT
TECHNICAL CHARACTERISTICS (FLIS)
EXTERNAL THREAD SIZE3/8-18
SURFACE TREATMENTANODIZE
INTERNAL THREAD DIRECTIONRIGHT-HAND
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/4, ALLOY 2014, T6 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/6, ALLOY 2024, T851 FED SPEC 2ND MATERIAL RESPONSE
MATERIALALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024
SPECIFICATION/STANDARD DATA81343-AS4842 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 88044-AN912 GOVERNMENT STANDARD
WORKING TEMP AND SERVICE TYPE225.0 DEG FAHRENHEIT NOMINAL LIQUID AND 225.0 DEG FAHRENHEIT NOMINAL HYDRAULIC OIL AND 225.0 DEG FAHRENHEIT NOMINAL OXYGEN
INTERNAL SCREW THREAD SERIES DESIGNATORANPT
STYLE DESIGNATOROUTSIDE HEXAGON OR OCTAGON (PARTIAL OR FULL THREAD OPTIONAL)
EXTERNAL THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
453618Interchangeable
interchangeable cross-reference
interchangeable
5867851018Interchangeable
interchangeable cross-reference
interchangeable
85-1018Interchangeable
interchangeable cross-reference
interchangeable
29-6-18Interchangeable
interchangeable cross-reference
interchangeable
AN912-3DInterchangeable
Same NIIN cross-reference
interchangeable
3152-1 1-8-3-8DInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS4861D03?
AS4861D03 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace AS4861D03?
There are 6 known substitutes for AS4861D03: 453618, 5867851018, 85-1018 and 3 more. Substitute compatibility should be verified for your specific system.
Is AS4861D03 still available?
AS4861D03 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