PartsTable
Technical Data Sheet
PartsTable / COMPONENT / AN818-8
AN818-8 ✓ 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: STEEL OVERALL, nut_style: TUBE COUPLING, nut_height: 0.843 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), thread_direction: RIGHT-HAND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-722-4891, 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
AN818-8
NSN: 4730-00-722-4891
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleTUBE COUPLING
nut_height0.843 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND ZINC OVERALL
length_to_shoulder0.723 INCHES NOMINAL IN
width_across_flats0.875 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
end_item_identificationGRUMMAN A-10 ACFT
smallest_inside_diameter0.570 INCHES NOMINAL IN
NSN4730-00-722-4891
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN818-8 · 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
•
THREAD CLASS: 3B
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
SMALLEST INSIDE DIAMETER: 0.570 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.875 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
NUT HEIGHT: 0.843 INCHES NOMINAL IN
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS3B
NOMINAL THREAD SIZE0.750 INCHES IN
SMALLEST INSIDE DIAMETER0.570 INCHES NOMINAL IN
END ITEM IDENTIFICATIONGRUMMAN A-10 ACFT
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NUT HEIGHT0.843 INCHES NOMINAL IN
NOMINAL TUBE OUTSIDE DIAMETER0.500 INCHES IN
THREAD QUANTITY PER INCH16
NUT STYLETUBE COUPLING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
1710656-1Interchangeable
interchangeable cross-reference
interchangeable
3057-1Interchangeable
interchangeable cross-reference
interchangeable
PTL946Interchangeable
interchangeable cross-reference
interchangeable
L946Interchangeable
interchangeable cross-reference
interchangeable
2956Interchangeable
interchangeable cross-reference
interchangeable
7HA6514AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy AN818-8?
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 AN818-8?
AN818-8 is a ADAPTER,STRAIGHT,PIPE TO BOSS.
What parts can replace AN818-8?
There are 20 known substitutes for AN818-8: 1710656-1, 3057-1, PTL946 and 17 more. Substitute compatibility should be verified for your specific system.
Is AN818-8 still available?
AN818-8 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 — AN818-8

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