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DF314326ITEM138 — TAILPIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

DF314326ITEM138: TAILPIECE,UNION.

The TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: STEEL, end_connection_type: WELDED, tubing_outside_diameter: 2.375 INCHES NOMINAL IN, nominal_pipe_size_designation: 2.000 INCHES IN, part_name_assigned_by_controlling_agency: TAILPIECE, 2 NPS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-602-7780, 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
DF314326ITEM138
NSN: 4730-01-602-7780
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialSTEEL
end_connection_typeWELDED
tubing_outside_diameter2.375 INCHES NOMINAL IN
nominal_pipe_size_designation2.000 INCHES IN
part_name_assigned_by_controlling_agencyTAILPIECE, 2 NPS
NSN4730-01-602-7780
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: DF314326ITEM138 · 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
•
NOMINAL PIPE SIZE DESIGNATION: 2.000 INCHES IN
•
END CONNECTION TYPE: WELDED
•
TUBING OUTSIDE DIAMETER: 2.375 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE DESIGNATION2.000 INCHES IN
END CONNECTION TYPEWELDED
TUBING OUTSIDE DIAMETER2.375 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYTAILPIECE, 2 NPS
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

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 DF314326ITEM138?
DF314326ITEM138 is a TAILPIECE,UNION.
What is the NSN for DF314326ITEM138?
DF314326ITEM138 is cataloged in the U.S. Government catalog under NSN 4730-01-602-7780. 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.