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1004478-02 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1004478-02: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, thread_class: 2A CENTER BULKHEAD A, connection_type: UNTHREADED EXTERNAL TUBE ALL ENDS, connection_style: INSERT (TUBE) ALL ENDS, style_designator: PLAIN, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-130-6653, 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
1004478-02
NSN: 4730-01-130-6653
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 1PQF4 — CAE USA INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
thread_class2A CENTER BULKHEAD A
connection_typeUNTHREADED EXTERNAL TUBE ALL ENDS
connection_styleINSERT (TUBE) ALL ENDS
style_designatorPLAIN
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.562 INCHES CENTER BULKHEAD IN
maximum_operating_temp750.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.625 INCHES IN
end_item_identificationCOCKPIT SECTION
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_series_designatorUNF CENTER BULKHEAD
NSN4730-01-130-6653
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1004478-02 · 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
•
FURNISHED ITEMS AND QUANTITY: 1 LOCKNUT
•
CONNECTION STYLE: INSERT (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.625 INCHES IN
•
CONNECTION TYPE: UNTHREADED EXTERNAL TUBE ALL ENDS
•
STYLE DESIGNATOR: PLAIN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 LOCKNUT
CONNECTION STYLEINSERT (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.625 INCHES IN
CONNECTION TYPEUNTHREADED EXTERNAL TUBE ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE CENTER BULKHEAD
STYLE DESIGNATORPLAIN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.562 INCHES CENTER BULKHEAD IN
MAXIMUM OPERATING TEMP750.0 FAHRENHEIT SINGLE RESPONSE DEGF
SUBSTITUTES & CROSS-REFERENCES 2
3307841-2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
1004478Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1004478-02?
1004478-02 is a COUPLING,TUBE.
What parts can replace 1004478-02?
There are 2 known substitutes for 1004478-02: 3307841-2, 1004478. Substitute compatibility should be verified for your specific system.
What is the NSN for 1004478-02?
1004478-02 is cataloged in the U.S. Government catalog under NSN 4730-01-130-6653. 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.