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A15PS406 — ADAPTER,STRAIGHT,FLANGE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A15PS406: ADAPTER,STRAIGHT,FLANGE TO TUBE.

ADAPTER,STRAIGHT,FLANGE TO TUBE. Key specifications include material: ALUMINUM ALLOY 2024 NUT, seat_angle: 37.0 DEGREES FIRST END, nominal_thickness: 0.250 INCHES SECOND END IN, surface_treatment: ANODIZE FLANGE, flange_face_design: RAISED STRAIGHT SECOND END, nominal_thread_size: 1.312 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-080-9307, 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
A15PS406
NSN: 4730-01-080-9307
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 NUT
seat_angle37.0 DEGREES FIRST END
nominal_thickness0.250 INCHES SECOND END IN
surface_treatmentANODIZE FLANGE
flange_face_designRAISED STRAIGHT SECOND END
nominal_thread_size1.312 INCHES FIRST END IN
nominal_overall_length2.250 INCHES IN
nominal_outside_diameter2.312 INCHES SECOND END IN
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) FIRST END
raised_face_nominal_height0.015 INCHES SECOND END IN
raised_face_nominal_diameter1.500 INCHES SECOND END IN
material_document_and_classificationQQ-A-225/8 FED SPEC 3RD MATERIAL RESPONSE TUBEUNABLE TO DECODE
NSN4730-01-080-9307
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A15PS406 · 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
•
FLANGE FACE DESIGN: RAISED STRAIGHT SECOND END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE FLANGE
•
NOMINAL OVERALL LENGTH: 2.250 INCHES IN
TECHNICAL CHARACTERISTICS
FLANGE FACE DESIGNRAISED STRAIGHT SECOND END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE FLANGE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE FLANGEUNABLE TO DECODE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 3 MIL SPEC 2ND TREATMENT RESPONSE NUT
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 3 MIL SPEC 2ND TREATMENT RESPONSE NUTUNABLE TO DECODE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 3 MIL SPEC 3RD TREATMENT RESPONSE TUBE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541,CL 3 MIL SPEC 3RD TREATMENT RESPONSE TUBEUNABLE TO DECODE
NOMINAL OVERALL LENGTH2.250 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC 2ND MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6 FED SPEC 2ND MATERIAL RESPONSE NUTUNABLE TO DECODE
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 A15PS406?
A15PS406 is a ADAPTER,STRAIGHT,FLANGE TO TUBE.
What is the NSN for A15PS406?
A15PS406 is cataloged in the U.S. Government catalog under NSN 4730-01-080-9307. 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.