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E-2109 — TAILPIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

E-2109: TAILPIECE,UNION.

The TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 903, seat_type: GASKET, overall_length: 2.625 INCHES NOMINAL IN, flange_thickness: 0.250 INCHES NOMINAL IN, special_features: FURNISHED W/UNION NUT,O-RING AND SOCKET WELDED, end_connection_type: WELDED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-191-8686, 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
E-2109
NSN: 4730-01-191-8686
NIINs: 011918686, 011918687, 011918688, 011919579
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53154 — PORTLAND VALVE LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 903
seat_typeGASKET
overall_length2.625 INCHES NOMINAL IN
flange_thickness0.250 INCHES NOMINAL IN
special_featuresFURNISHED W/UNION NUT,O-RING AND SOCKET WELDED
end_connection_typeWELDED
end_item_identificationBALL VALVE BRASS .75IP
flange_outside_diameter1.002 INCHES NOMINAL IN
tubing_outside_diameter1.000 INCHES NOMINAL IN
nominal_pipe_size_designation1.000 INCHES IN
precious_material_and_locationBRAZED END SILVER
working_pressure_and_service_type4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL GAS AND 4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL OIL AND 4500.0 POUNDS PER SQUARE INCH (PSI) NOMINAL WATER LBS
NSN4730-01-191-8686
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: E-2109 · 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: 1.000 INCHES IN
•
END CONNECTION TYPE: WELDED
•
SEAT TYPE: GASKET
•
MATERIAL: COPPER ALLOY 715
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE DESIGNATION1.000 INCHES IN
END CONNECTION TYPEWELDED
SEAT TYPEGASKET
END ITEM IDENTIFICATIONVALVES
MATERIALCOPPER ALLOY 715
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 E-2109?
E-2109 is a TAILPIECE,UNION.
What is the NSN for E-2109?
E-2109 is cataloged in the U.S. Government catalog under NSN 4730-01-191-8686. 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.