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AN790-3 ✓ 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 ELBOW,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include duty_type: CONTINUOUS, body_length: 5.6 MILLIMETERS MINIMUM AND 6.8 MILLIMETERS MAXIMUM MM, thread_class: 2B SINGLE MOUNTING FACILITY, body_diameter: 2.1 MILLIMETERS MINIMUM AND 2.5 MILLIMETERS MAXIMUM MM, overall_width: 6.820 INCHES NOMINAL IN, terminal_type: WIRE LEAD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-231-3927, 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
AN790-3
NSN: 4730-00-231-3927
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
duty_typeCONTINUOUS
body_length5.6 MILLIMETERS MINIMUM AND 6.8 MILLIMETERS MAXIMUM MM
thread_class2B SINGLE MOUNTING FACILITY
body_diameter2.1 MILLIMETERS MINIMUM AND 2.5 MILLIMETERS MAXIMUM MM
cell_quantity6
coil_quantity1
overall_width6.820 INCHES NOMINAL IN
terminal_typeWIRE LEAD
inclosure_typeENCAPSULATED
overall_height11.500 INCHES NOMINAL IN
overall_length13.500 INCHES NOMINAL IN
style_designatorAXIAL TERMINAL EACH END
NSN4730-00-231-3927
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN790-3 · 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 5
29133Interchangeable
interchangeable cross-reference
interchangeable
19591Interchangeable
interchangeable cross-reference
interchangeable
01537Interchangeable
interchangeable cross-reference
interchangeable
74709Interchangeable
interchangeable cross-reference
interchangeable
AN790-3PMInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN790-3?
AN790-3 is a ELBOW,PIPE TO TUBE.
What parts can replace AN790-3?
There are 5 known substitutes for AN790-3: 29133, 19591, 01537 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN790-3?
AN790-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-231-3927. 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: July 2026