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AS4227T12-055 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS4227T12-055: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY UNS R56400 OVERALL, thread_class: 3B FIRST END, connection_type: UNTHREADED INTERNAL TUBE SECOND END, connection_style: GASKET SEAL (TUBE) FIRST END, mounting_end_type: FLAT, operating_pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-620-1653, 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
AS4227T12-055
NSN: 4730-01-620-1653
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialTITANIUM ALLOY UNS R56400 OVERALL
thread_class3B FIRST END
connection_typeUNTHREADED INTERNAL TUBE SECOND END
connection_styleGASKET SEAL (TUBE) FIRST END
mounting_end_typeFLAT
operating_pressure5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.000 INCHES FIRST END IN
end_item_identificationF-35 AIRCRAFT
thread_quantity_per_inch16 FIRST END
thread_series_designatorUNIFIED NATIONAL JOINT (UNJ) FIRST END
material_document_and_classificationAMS4965 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyFITTING ASSEMBLY,ADAPTER,INTERNAL THREAD,BEAM SEAL TO INTEGRAL WELD RING
NSN4730-01-620-1653
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS4227T12-055 · 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
•
MOUNTING END TYPE: FLAT
•
CONNECTION STYLE: GASKET SEAL (TUBE) FIRST END
•
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.044 INCHES SECOND END IN
•
CONNECTION TYPE: THREADED INTERNAL BOSS FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS4965 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
MOUNTING END TYPEFLAT
CONNECTION STYLEGASKET SEAL (TUBE) FIRST END
CONNECTION STYLESOCKET W/ GROVE (TUBE) SECOND END
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED0.044 INCHES SECOND END IN
CONNECTION TYPETHREADED INTERNAL BOSS FIRST END
CONNECTION TYPEUNTHREADED INTERNAL TUBE SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONAMS4965 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES SECOND END IN
OPERATING PRESSURE5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE1.000 INCHES FIRST END 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-AS85421Reference 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 AS4227T12-055?
AS4227T12-055 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AS4227T12-055?
There is 1 known substitute for AS4227T12-055: SAE-AS85421. Substitute compatibility should be verified for your specific system.
What is the NSN for AS4227T12-055?
AS4227T12-055 is cataloged in the U.S. Government catalog under NSN 4730-01-620-1653. 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.