PartsTable
Technical Data Sheet
AN780C3 ✓ 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 COMP 302 OVERALL, seat_angle: 45.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: PLAIN (PIPE) SECOND END, surface_treatment: PASSIVATE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-1134, 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
AN780C3
NSN: 4730-00-287-1134
FSC: 4730
CAGE: 88044 — AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
seat_angle45.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_stylePLAIN (PIPE) SECOND END
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.125 INCHES SECOND END IN
nominal_overall_length0.938 INCHES IN
thread_series_designatorUNF FIRST END
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.188 INCHES FIRST END IN
NSN4730-00-287-1134
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AN780C3 · 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 SERIES DESIGNATOR: UNF FIRST END
SEAT ANGLE: 45.0 DEGREES FIRST END
SURFACE TREATMENT: PASSIVATE OVERALL
THREAD CLASS: 3A FIRST END A
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.188 INCHES FIRST END IN
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
NOMINAL OVERALL LENGTH: 0.938 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNF FIRST END
THREAD SERIES DESIGNATORANPT SECOND END
SEAT ANGLE45.0 DEGREES FIRST END
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3A FIRST END A
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
NOMINAL OVERALL LENGTH0.938 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
5509Interchangeable
interchangeable cross-reference
interchangeable
AN780-2Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-6001Interchangeable
interchangeable cross-reference
interchangeable
3100994Interchangeable
interchangeable cross-reference
interchangeable
7106Interchangeable
interchangeable cross-reference
interchangeable
AN800-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AN780C3?
AN780C3 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace AN780C3?
There are 21 known substitutes for AN780C3: 5509, AN780-2, MIL-DTL-6001 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AN780C3?
AN780C3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-1134. This indicates validated use in U.S. government and defense supply chains.
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