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PartsTable / COMPONENT / AN797-6
AN797-6 ✓ 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 NUT,HOSE COUPLING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: HOSE COUPLING, nut_height: 1.300 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF, special_features: WEAPON SYSTEM ESSENTIAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-640-1506, 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
AN797-6
NSN: 4730-00-640-1506
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleHOSE COUPLING
nut_height1.300 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
special_featuresWEAPON SYSTEM ESSENTIAL
thread_directionRIGHT-HAND
hose_nominal_size0.313 INCHES IN
surface_treatmentANODIZE OVERALL
nominal_thread_size0.421 INCHES IN
largest_outside_diameter0.812 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
smallest_inside_diameter0.313 INCHES NOMINAL IN
NSN4730-00-640-1506
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN797-6 · 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: HOSE COUPLING
•
LARGEST OUTSIDE DIAMETER: 0.812 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
•
NOMINAL THREAD SIZE: 0.421 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
THREAD QUANTITY PER INCH: 28
•
THREAD SERIES: UNF
•
SMALLEST INSIDE DIAMETER: 0.313 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NUT STYLEHOSE COUPLING
LARGEST OUTSIDE DIAMETER0.812 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.421 INCHES IN
CRITICALITY CODE JUSTIFICATIONFEAT
THREAD QUANTITY PER INCH28
THREAD SERIESUNF
SPECIAL FEATURESWEAPON SYSTEM ESSENTIAL
SMALLEST INSIDE DIAMETER0.313 INCHES NOMINAL IN
SURFACE TREATMENTANODIZE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
11-026Interchangeable
interchangeable cross-reference
interchangeable
071026Interchangeable
interchangeable cross-reference
interchangeable
A7052-9Interchangeable
interchangeable cross-reference
interchangeable
99016-19Interchangeable
interchangeable cross-reference
interchangeable
W60AS7X2Interchangeable
interchangeable cross-reference
interchangeable
W60AS7X2-0221Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN797-6?
AN797-6 is a NUT,HOSE COUPLING.
What parts can replace AN797-6?
There are 19 known substitutes for AN797-6: 11-026, 071026, A7052-9 and 16 more. Substitute compatibility should be verified for your specific system.
Is AN797-6 still available?
AN797-6 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