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4178-24 — SLEEVE,COMPRESSION,TUBE-HOSE FIT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4178-24: SLEEVE,COMPRESSION,TUBE-HOSE FIT.

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: ALUMINUM ALLOY 2024, overall_length: 0.531 INCHES NOMINAL IN, style_designator: DOUBLE BEVEL FLARELESS, seat_angle_in_deg: 37.000, casehardening_indicator: NOT CASEHARDENED, sleeve_outside_diameter: 1.735 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-528-2404, 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
4178-24
NSN: 4730-00-528-2404
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 91859 — LEGGETT & PLATT, INCORPORATED DBA LEGGETT & PLATT ADJUSTABLE BEDS DIV CORPORATE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
overall_length0.531 INCHES NOMINAL IN
style_designatorDOUBLE BEVEL FLARELESS
seat_angle_in_deg37.000
casehardening_indicatorNOT CASEHARDENED
sleeve_outside_diameter1.735 INCHES NOMINAL IN
material_document_and_classificationSAE 24S, T4-CANCELED ASSN STD SINGLE MATERIAL RESPONSE
hose/tube_outside_diameter_for_which_designed1.500 INCHES NOMINAL IN
NSN4730-00-528-2404
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4178-24 · 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
•
SEAT ANGLE IN DEG: 37.000
•
STYLE DESIGNATOR: DOUBLE BEVEL FLARELESS
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 24S, T4-CANCELED ASSN STD SINGLE MATERIAL RESPONSE
•
SLEEVE OUTSIDE DIAMETER: 1.735 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: ALUMINUM ALLOY 2024
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG37.000
STYLE DESIGNATORDOUBLE BEVEL FLARELESS
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 24S, T4-CANCELED ASSN STD SINGLE MATERIAL RESPONSE
OVERALL LENGTH0.531 INCHES NOMINAL IN
SLEEVE OUTSIDE DIAMETER1.735 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALALUMINUM ALLOY 2024
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED1.500 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 2
NAS592-24Reference document
Same NSN cross-reference
Reference document — Secondary reference
S2446973Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4178-24?
4178-24 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace 4178-24?
There are 2 known substitutes for 4178-24: NAS592-24, S2446973. Substitute compatibility should be verified for your specific system.
What is the NSN for 4178-24?
4178-24 is cataloged in the U.S. Government catalog under NSN 4730-00-528-2404. This indicates validated use in U.S. government and defense supply chains.
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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.