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354578 — NUT,TUBE COUPLING

✓ Government record, cited
Manhattan · HOSE FITTING
PRODUCT OVERVIEW

354578: NUT,TUBE COUPLING.

High-quality connections that provide superior performance The Manhattan 3.5 mm Mic/Headset 1-to-2 Adapter connects headphone/microphone combos with combined 3.5 mm, four-pin jacks to two three-pin ports for crisp, clear, error-free transmissions. Whether using with legacy headsets or the newest gaming headset, the Manhattan 3.5 mm Mic/Headset 1-to-2 Adapter is carefully engineered and constructed of quality materials, helping ensure maximum conductivity, minimal degradation and the highest performance from connected media devices. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-674-9136, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
354578
NSN: 4730-00-674-9136
NIINs: 006749136, 016882390
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
end_item_identificationKC-46 AIRCRAFT
reference_number_differentiating_characteristicsITEM IS FAA CERTIFIED
NSN4730-00-674-9136
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 354578 · Manhattan ⚠ 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
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 354578?
354578 is a NUT,TUBE COUPLING manufactured by Manhattan.
What is the NSN for 354578?
354578 is cataloged in the U.S. Government catalog under NSN 4730-00-674-9136. 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.