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12256665-1 — ADAPTER,STRAIGHT,FLANGE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

12256665-1: ADAPTER,STRAIGHT,FLANGE TO TUBE.

ADAPTER,STRAIGHT,FLANGE TO TUBE. Key specifications include material: STEEL COMP 1010 OVERALL, seat_angle: 37.0 DEGREES SECOND END, flange_shape: ROUND FIRST END, thread_class: 2A SECOND END A, connection_type: FLANGE FIRST END, connection_style: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-121-7604, 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
12256665-1
NSN: 4730-01-121-7604
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OVERALL
seat_angle37.0 DEGREES SECOND END
flange_shapeROUND FIRST END
thread_class2A SECOND END A
connection_typeFLANGE FIRST END
connection_styleSWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END
special_featuresEND ARTICLE APPLICATION TRUCK,WRECKER NSN 2320-01-206-4078
nominal_thickness0.083 INCHES FIRST END IN
flange_face_designPLAIN FIRST END
nominal_thread_size0.312 INCHES SECOND END IN
nominal_outside_diameter1.750 INCHES FIRST END IN
thread_quantity_per_inch12 SECOND END
NSN4730-01-121-7604
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12256665-1 · 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
•
FLANGE SHAPE: ROUND FIRST END
•
FLANGE FACE DESIGN: PLAIN FIRST END
•
CONNECTION STYLE: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END
•
CONNECTION TYPE: THREADED EXTERNAL HOSE SECOND END
•
NOMINAL THREAD SIZE: 0.312 INCHES SECOND END IN
•
SEAT ANGLE: 37.0 DEGREES SECOND END
•
NOMINAL OUTSIDE DIAMETER: 1.750 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND FIRST END
FLANGE FACE DESIGNPLAIN FIRST END
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END SECOND END
CONNECTION TYPETHREADED EXTERNAL HOSE SECOND END
CONNECTION TYPEFLANGE FIRST END
NOMINAL THREAD SIZE0.312 INCHES SECOND END IN
SEAT ANGLE37.0 DEGREES SECOND END
NOMINAL OUTSIDE DIAMETER1.750 INCHES FIRST END IN
SPECIAL FEATURESEND ARTICLE APPLICATION TRUCK,WRECKER NSN 2320-01-206-4078
THREAD CLASS2A SECOND END A
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12256665-1?
12256665-1 is a ADAPTER,STRAIGHT,FLANGE TO TUBE.
What is the NSN for 12256665-1?
12256665-1 is cataloged in the U.S. Government catalog under NSN 4730-01-121-7604. This indicates validated use in U.S. government and defense supply chains.
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