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AN818-6W — 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,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, nut_style: TUBE COUPLING, nut_height: 0.724 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-290-4915, 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
AN818-6W
NSN: 4730-01-290-4915
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 7075 OVERALL
nut_styleTUBE COUPLING
nut_height0.724 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
thread_directionRIGHT-HAND
fabrication_methodMACHINED
length_to_shoulder0.603 INCHES NOMINAL IN
width_across_flats0.688 INCHES NOMINAL IN
nominal_thread_size0.562 INCHES IN
smallest_inside_diameter0.440 INCHES NOMINAL IN
thread_quantity_per_inch18
NSN4730-01-290-4915
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN818-6W · 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
•
NUT STYLE: TUBE COUPLING
•
THREAD QUANTITY PER INCH: 18
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.375 INCHES IN
•
THREAD CLASS: 3B
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.562 INCHES IN
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
FABRICATION METHOD: MACHINED
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLETUBE COUPLING
THREAD QUANTITY PER INCH18
NOMINAL TUBE OUTSIDE DIAMETER0.375 INCHES IN
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.562 INCHES IN
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
FABRICATION METHODMACHINED
SPECIFICATION/STANDARD DATA88044-AN818-6W GOVERNMENT STANDARD W
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
D10008-8Same_fsc
same_fsc cross-reference
same_fsc
AC1034C08Same_fsc
same_fsc cross-reference
same_fsc
D10008-12Same_fsc
same_fsc cross-reference
same_fsc
LD83023-12Same_fsc
same_fsc cross-reference
same_fsc
H10008-12Same_fsc
same_fsc cross-reference
same_fsc
AS4841Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN818-6W?
AN818-6W is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AN818-6W?
There are 9 known substitutes for AN818-6W: D10008-8, AC1034C08, D10008-12 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN818-6W?
AN818-6W is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-290-4915. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026