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ST9M447-278B5A — CLAMP,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ST9M447-278B5A: CLAMP,HOSE.

The CLAMP,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL NUT, overall_width: 0.620 INCHES NOMINAL IN, inside_diameter: 4.470 INCHES NOMINAL IN, special_features: NAVYI,CLAMP,FLAT BAND, AIR, style_designator: BAND, fastening_device_type: T-BOLT. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-477-9304, 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
ST9M447-278B5A
NSN: 4730-01-477-9304
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialSTEEL NUT
overall_width0.620 INCHES NOMINAL IN
inside_diameter4.470 INCHES NOMINAL IN
special_featuresNAVYI,CLAMP,FLAT BAND, AIR
style_designatorBAND
fastening_device_typeT-BOLT
supplementary_features2 LUG SUPPORTS
end_item_identificationF-18 E/F
NSN4730-01-477-9304
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ST9M447-278B5A · 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
•
FASTENING DEVICE TYPE: T-BOLT
•
SUPPLEMENTARY FEATURES: 2 LUG SUPPORTS
•
STYLE DESIGNATOR: BAND
•
INSIDE DIAMETER: 4.470 INCHES NOMINAL IN
•
MATERIAL: STEEL NUT
TECHNICAL CHARACTERISTICS
FASTENING DEVICE TYPET-BOLT
SUPPLEMENTARY FEATURES2 LUG SUPPORTS
STYLE DESIGNATORBAND
OVERALL WIDTH0.620 INCHES NOMINAL IN
INSIDE DIAMETER4.470 INCHES NOMINAL IN
SPECIAL FEATURESNAVYI,CLAMP,FLAT BAND, AIR
END ITEM IDENTIFICATIONF-18 E/F
MATERIALSTEEL NUT
MATERIALSTEEL BOLT
MATERIALSTEEL CORROSION RESISTING BAND
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 ST9M447-278B5A?
ST9M447-278B5A is a CLAMP,HOSE.
What is the NSN for ST9M447-278B5A?
ST9M447-278B5A is cataloged in the U.S. Government catalog under NSN 4730-01-477-9304. 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.