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140-12D — COUPLING ASSEMBLY,SELF-SEALING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

140-12D: COUPLING ASSEMBLY,SELF-SEALING.

The COUPLING ASSEMBLY,SELF-SEALING is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, seat_angle: 37.0 DEGREES, thread_class: 3A SECOND QUICK DISCONNECT END3A SECOND QUICK DISCONNECT END A, overall_length: 4.544 INCHES NOMINAL4.544 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE SECOND QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE SECOND QUICK DISCONNECT END, connection_style: FLARED FIRST QUICK DISCONNECT ENDFLARED FIRST QUICK DISCONNECT END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-433-2580, 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
140-12D
NSN: 4730-00-433-2580
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 00624 — EATON AEROQUIP LLC DBA JACKSON NORTH 1 DIV FLUID AND ELECTRICAL DISTRIBUTION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
seat_angle37.0 DEGREES
thread_class3A SECOND QUICK DISCONNECT END3A SECOND QUICK DISCONNECT END A
overall_length4.544 INCHES NOMINAL4.544 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE SECOND QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE SECOND QUICK DISCONNECT END
connection_styleFLARED FIRST QUICK DISCONNECT ENDFLARED FIRST QUICK DISCONNECT END
style_designatorCOUPLING ASSEMBLY
basic_shape_styleROUND MOUNTING FLANGEROUND MOUNTING FLANGE
features_providedSELF-SEALINGSELF-SEALING
surface_treatmentANODIZE BODY
bolt_hole_quantity66
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4730-00-433-2580
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 140-12D · 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
•
CONNECTION STYLE: FLARED FIRST QUICK DISCONNECT ENDFLARED FIRST QUICK DISCONNECT END
•
BOLT CIRCLE NOMINAL DIAMETER: 2.125 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END
•
STYLE DESIGNATOR: COUPLING ASSEMBLY
•
BOLT HOLE NOMINAL DIAMETER: 0.190 INCHES IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED FIRST QUICK DISCONNECT ENDFLARED FIRST QUICK DISCONNECT END
CONNECTION STYLEFLARED SECOND QUICK DISCONNECT ENDFLARED SECOND QUICK DISCONNECT END
BOLT CIRCLE NOMINAL DIAMETER2.125 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE FIRST QUICK DISCONNECT END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND QUICK DISCONNECT ENDTHREADED EXTERNAL TUBE SECOND QUICK DISCONNECT END
STYLE DESIGNATORCOUPLING ASSEMBLY
OVERALL LENGTH4.544 INCHES NOMINAL4.544 INCHES NOMINAL IN
BOLT HOLE NOMINAL DIAMETER0.190 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND QUICK DISCONNECT END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND QUICK DISCONNECT END0.750 INCHES FIRST QUICK DISCONNECT END IN
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 1
AN6242-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 140-12D?
140-12D is a COUPLING ASSEMBLY,SELF-SEALING.
What parts can replace 140-12D?
There is 1 known substitute for 140-12D: AN6242-12. Substitute compatibility should be verified for your specific system.
What is the NSN for 140-12D?
140-12D is cataloged in the U.S. Government catalog under NSN 4730-00-433-2580. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.