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AP50A-3 — SEAL,CONICAL,FLARED TUBE FITTING

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AP50A-3: SEAL,CONICAL,FLARED TUBE FITTING.

SEAL,CONICAL,FLARED TUBE FITTING. Key specifications include material: ALUMINUM ALLOY, body_length: 0.050 INCHES NOMINAL IN, overall_length: 0.138 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN, wall_thickness: 0.018 INCHES NOMINAL IN, outside_diameter: 0.330 INCHES NOMINAL IN, special_features: MATERIAL PER 6061,QQ-A-325 ANNEALED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-103-0462, 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
AP50A-3
NSN: 4730-01-103-0462
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 01673 — SPS TECHNOLOGIES, LLC DBA AIRDROME PRECISION COMPONENTS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
body_length0.050 INCHES NOMINAL IN
overall_length0.138 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
wall_thickness0.018 INCHES NOMINAL IN
outside_diameter0.330 INCHES NOMINAL IN
special_featuresMATERIAL PER 6061,QQ-A-325 ANNEALED
style_designatorSEAL
seat_angle_in_deg37.0
casehardening_indicatorCASEHARDENED
hose/tube_outside_diameter_for_which_designed0.187 INCHES NOMINAL IN
NSN4730-01-103-0462
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AP50A-3 · 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: 37.0
•
STYLE DESIGNATOR: SEAL
•
WALL THICKNESS: 0.018 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 0.330 INCHES NOMINAL IN
•
BODY LENGTH: 0.050 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: CASEHARDENED
TECHNICAL CHARACTERISTICS
SEAT ANGLE IN DEG37.0
STYLE DESIGNATORSEAL
OVERALL LENGTH0.138 INCHES MINIMUM AND 0.173 INCHES MAXIMUM IN
WALL THICKNESS0.018 INCHES NOMINAL IN
OUTSIDE DIAMETER0.330 INCHES NOMINAL IN
BODY LENGTH0.050 INCHES NOMINAL IN
CASEHARDENING INDICATORCASEHARDENED
SPECIAL FEATURESMATERIAL PER 6061,QQ-A-325 ANNEALED
MATERIALALUMINUM ALLOY
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.187 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

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 AP50A-3?
AP50A-3 is a SEAL,CONICAL,FLARED TUBE FITTING.
What is the NSN for AP50A-3?
AP50A-3 is cataloged in the U.S. Government catalog under NSN 4730-01-103-0462. 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.