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6394618 FIND 002 — TAILPIECE,UNION

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

6394618 FIND 002: TAILPIECE,UNION.

The TAILPIECE,UNION is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 706, seat_type: STRAIGHT FACE, overall_length: 0.500 INCHES NOMINAL IN, flange_thickness: 0.120 INCHES NOMINAL IN, special_features: TAILPIECE TO O'RING FACE SEAL UNION, end_connection_type: BRAZED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-520-9940, 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
6394618 FIND 002
NSN: 4730-01-520-9940
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 706
seat_typeSTRAIGHT FACE
overall_length0.500 INCHES NOMINAL IN
flange_thickness0.120 INCHES NOMINAL IN
special_featuresTAILPIECE TO O'RING FACE SEAL UNION
end_connection_typeBRAZED
end_item_identificationTUBE AY,V BLS
flange_outside_diameter0.750 INCHES NOMINAL IN
tubing_outside_diameter0.500 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyFEMALE TAILPIECE, UNION
NSN4730-01-520-9940
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 6394618 FIND 002 · 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 THICKNESS: 0.120 INCHES NOMINAL IN
•
END CONNECTION TYPE: BRAZED
•
SEAT TYPE: STRAIGHT FACE
•
TUBING OUTSIDE DIAMETER: 0.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FLANGE THICKNESS0.120 INCHES NOMINAL IN
END CONNECTION TYPEBRAZED
OVERALL LENGTH0.500 INCHES NOMINAL IN
SEAT TYPESTRAIGHT FACE
TUBING OUTSIDE DIAMETER0.500 INCHES NOMINAL IN
SPECIAL FEATURESTAILPIECE TO O'RING FACE SEAL UNION
PART NAME ASSIGNED BY CONTROLLING AGENCYFEMALE TAILPIECE, UNION
END ITEM IDENTIFICATIONTUBE AY,V BLS
MATERIALCOPPER ALLOY 706
FLANGE OUTSIDE DIAMETER0.750 INCHES NOMINAL 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

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 6394618 FIND 002?
6394618 FIND 002 is a TAILPIECE,UNION.
What is the NSN for 6394618 FIND 002?
6394618 FIND 002 is cataloged in the U.S. Government catalog under NSN 4730-01-520-9940. 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.