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AA5001-04 — NIPPLE,BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AA5001-04: NIPPLE,BOSS.

The NIPPLE,BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2014 OVERALL, thread_class: 3A FIRST END BULKHEAD A, connection_type: THREADED EXTERNAL BOSS ALL ENDS, connection_style: FLARED W/ GASKET SEAL (BOSS) ALL ENDS, special_features: DICROMATE SEAL ENTIRE FITTING EXCEPT ELECTRICAL BONDING SURFACE WHICH SHALL HAVE CHEMICAL CONVERSION COATING APPLIED, style_designator: FLARED W/ BULKHEAD THREAD. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-435-9504, 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
AA5001-04
NSN: 4730-01-435-9504
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 06581 — ALLAN AIRCRAFT SUPPLY CO., LLC DBA ALLAN AIRCRAFT SUPPLY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2014 OVERALL
thread_class3A FIRST END BULKHEAD A
connection_typeTHREADED EXTERNAL BOSS ALL ENDS
connection_styleFLARED W/ GASKET SEAL (BOSS) ALL ENDS
special_featuresDICROMATE SEAL ENTIRE FITTING EXCEPT ELECTRICAL BONDING SURFACE WHICH SHALL HAVE CHEMICAL CONVERSION COATING APPLIED
style_designatorFLARED W/ BULKHEAD THREAD
surface_treatmentANODIZE OVERALL
nominal_thread_size0.438 INCHES FIRST END BULKHEAD IN
nominal_overall_length2.046 INCHES IN
end_item_identificationACFT B-2 BOMBER
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
surface_treatment_document_and_classificationMIL-A-8625,TYPE II,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN4730-01-435-9504
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA5001-04 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TYPE II,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARED W/ GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 2.046 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: FLARED W/ BULKHEAD THREAD
•
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END BULKHEAD IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE II,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARED W/ GASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH2.046 INCHES IN
CONNECTION TYPETHREADED EXTERNAL BOSS ALL ENDS
STYLE DESIGNATORFLARED W/ BULKHEAD THREAD
NOMINAL THREAD SIZE0.438 INCHES FIRST END BULKHEAD IN
NOMINAL THREAD SIZE0.438 INCHES ALL ENDS IN
SPECIAL FEATURESDICROMATE SEAL ENTIRE FITTING EXCEPT ELECTRICAL BONDING SURFACE WHICH SHALL HAVE CHEMICAL CONVERSION COATING APPLIED
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3A FIRST END BULKHEAD A
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 AA5001-04?
AA5001-04 is a NIPPLE,BOSS.
What is the NSN for AA5001-04?
AA5001-04 is cataloged in the U.S. Government catalog under NSN 4730-01-435-9504. 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.