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AS5176-03 — SLEEVE,FLARED,TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS5176-03: SLEEVE,FLARED,TUBE FITTING.

The SLEEVE,FLARED,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL, casehardening_indicator: CASEHARDENED, end_item_identification: USED ON THE SEA KING HELICOPTER, part_name_assigned_by_controlling_agency: FITTING,SLEEVE.FLARED, hose/tube_outside_diameter_for_which_designed: 0.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-586-3508, 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
AS5176-03
NSN: 4730-01-586-3508
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL
casehardening_indicatorCASEHARDENED
end_item_identificationUSED ON THE SEA KING HELICOPTER
part_name_assigned_by_controlling_agencyFITTING,SLEEVE.FLARED
hose/tube_outside_diameter_for_which_designed0.188 INCHES NOMINAL IN
NSN4730-01-586-3508
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS5176-03 · 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
•
CASEHARDENING INDICATOR: CASEHARDENED
•
MATERIAL: STEEL
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CASEHARDENING INDICATORCASEHARDENED
SPECIAL FEATURESMATERIAL IS CARBON STEEL PER AMS 6370 TYPE 4130 OR AMS 6382 TYPE 4140, HARDENED PER SAE AS4841, FINNISH IS CADMIUM PLATE PER QQ-P-416 TYPE II CLASS 2 DYE BLACK AND COAT WITH LIGHT FILM OF OIL PER SAE AS4841, DESIGNED FOR USE IN SYSTEMS WITH MAX OPERATING PRESSURE OF 3000 PSI.
PART NAME ASSIGNED BY CONTROLLING AGENCYFITTING,SLEEVE.FLARED
END ITEM IDENTIFICATIONUSED ON THE SEA KING HELICOPTER
MATERIALSTEEL
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.188 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 1
SAE-AS4841Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 AS5176-03?
AS5176-03 is a SLEEVE,FLARED,TUBE FITTING.
What parts can replace AS5176-03?
There is 1 known substitute for AS5176-03: SAE-AS4841. Substitute compatibility should be verified for your specific system.
What is the NSN for AS5176-03?
AS5176-03 is cataloged in the U.S. Government catalog under NSN 4730-01-586-3508. 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.