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Technical Data Sheet

AS85421/4 — FITTING,TEE,AIRCRAFT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

AS85421/4: FITTING,TEE,AIRCRAFT.

The FITTING,TEE,AIRCRAFT is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY BODY, nominal_length: 0.824 INCHES SECOND END IN, connection_type: THREADED EXTERNAL TUBE SECOND END, connection_style: PLAIN (TUBE) FIRST END, style_designator: TEE, operating_pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-654-4369, 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
AS85421/4
NSN: 4730-01-654-4369
NIINs: 016544369, 016668354, 016668378, 017190594
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialTITANIUM ALLOY BODY
nominal_length0.824 INCHES SECOND END IN
connection_typeTHREADED EXTERNAL TUBE SECOND END
connection_stylePLAIN (TUBE) FIRST END
style_designatorTEE
operating_pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
material_document_and_classificationAMS4928 AMS4965 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE BODY
nominal_outside_diameter_tube_accommodated0.50 INCHES ALL ENDS IN
NSN4730-01-654-4369
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS85421/4 · 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
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
CONNECTION TYPE: THREADED EXTERNAL BOSS FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) FIRST END
CONNECTION STYLESWIVEL NUT, GASKET SEAL (TUBE) THIRD END
CONNECTION TYPETHREADED EXTERNAL BOSS FIRST END
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE THIRD END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES THIRD END IN
OPERATING PRESSURE4000.00 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SUBSTITUTES & CROSS-REFERENCES 2
M85421/4T060604Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SAE-AS85421/4Reference 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 AS85421/4?
AS85421/4 is a FITTING,TEE,AIRCRAFT.
What parts can replace AS85421/4?
There are 2 known substitutes for AS85421/4: M85421/4T060604, SAE-AS85421/4. Substitute compatibility should be verified for your specific system.
What is the NSN for AS85421/4?
AS85421/4 is cataloged in the U.S. Government catalog under NSN 4730-01-654-4369. This indicates validated use in U.S. government and defense supply chains.
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