PartsTable
Technical Data Sheet
PartsTable / COMPONENT / AN818-20
AN818-20 ✓ 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 TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: TUBE COUPLING, nut_height: 1.214 INCHES MINIMUM AND 1.234 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT (UNJ), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-0268, 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
AN818-20
NSN: 4730-00-287-0268
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleTUBE COUPLING
nut_height1.214 INCHES MINIMUM AND 1.234 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT (UNJ)
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
length_to_shoulder1.017 INCHES NOMINAL IN
width_across_flats1.984 INCHES MINIMUM AND 2.016 INCHES MAXIMUM IN
nominal_thread_size1.625 INCHES IN
smallest_inside_diameter1.347 INCHES MINIMUM AND 1.350 INCHES MAXIMUM IN
thread_quantity_per_inch12
NSN4730-00-287-0268
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN818-20 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
218349-1Interchangeable
interchangeable cross-reference
interchangeable
52-2-14Interchangeable
interchangeable cross-reference
interchangeable
82-2-24Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS4841Interchangeable
interchangeable cross-reference
interchangeable
A818-20Interchangeable
interchangeable cross-reference
interchangeable
AN818-20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy AN818-20?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is AN818-20?
AN818-20 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace AN818-20?
There are 12 known substitutes for AN818-20: 218349-1, 52-2-14, 82-2-24 and 9 more. Substitute compatibility should be verified for your specific system.
Is AN818-20 still available?
AN818-20 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — AN818-20

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026