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2402903 — TAILPIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2402903: TAILPIECE,UNION.

The TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: STEEL, seat_type: ANGLE, thread_size: 3/4-14, overall_length: 1.390 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, seat_angle_in_deg: 30.0. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-231-5744, 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
2402903
NSN: 4730-00-231-5744
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 86403 — CHRYSLER CORP SERVICE AND PARTS OPNS (USA)
SPECIFICATIONS
materialSTEEL
seat_typeANGLE
thread_size3/4-14
overall_length1.390 INCHES NOMINAL IN
thread_directionRIGHT-HAND
seat_angle_in_deg30.0
end_connection_typeTHREADED
screw_thread_locationEXTERNAL
screw_thread_series_designatorNPT
NSN4730-00-231-5744
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2402903 · 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
•
SEAT ANGLE IN DEG: 30.0
•
END CONNECTION TYPE: THREADED
•
SEAT TYPE: ANGLE
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SIZE: 3/4-14
•
SCREW THREAD SERIES DESIGNATOR: NPT
•
SCREW THREAD LOCATION: EXTERNAL
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG30.0
END CONNECTION TYPETHREADED
OVERALL LENGTH1.390 INCHES NOMINAL IN
SEAT TYPEANGLE
THREAD DIRECTIONRIGHT-HAND
THREAD SIZE3/4-14
SCREW THREAD SERIES DESIGNATORNPT
SCREW THREAD LOCATIONEXTERNAL
MATERIALSTEEL
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
12270744Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 2402903?
2402903 is a TAILPIECE,UNION.
What parts can replace 2402903?
There is 1 known substitute for 2402903: 12270744. Substitute compatibility should be verified for your specific system.
What is the NSN for 2402903?
2402903 is cataloged in the U.S. Government catalog under NSN 4730-00-231-5744. 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.