PartsTable
Technical Data Sheet
AS4857J03 ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The TEE,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 3.375 INCHES MINIMUM AND 3.469 INCHES MAXIMUM ALL ENDS IN, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND END, operating_pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-149-9276, 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
AS4857J03
NSN: 4730-00-149-9276
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
flow_angle90.0 DEGREES
leg_length3.375 INCHES MINIMUM AND 3.469 INCHES MAXIMUM ALL ENDS IN
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.250 INCHES ALL ENDS IN
end_item_identificationPITOT STATIC ACCESSORY KIT
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_quantity_per_inchA11.50 ALL ENDS
thread_series_designatorANPT ALL ENDS
nominal_width_across_flats2.156 INCHES CENTER BULKHEAD IN
NSN4730-00-149-9276
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS4857J03 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
AS4857Interchangeable
interchangeable cross-reference
interchangeable
AS4842Interchangeable
interchangeable cross-reference
interchangeable
AS4857-03Interchangeable
interchangeable cross-reference
interchangeable
AN917-8DInterchangeable
interchangeable cross-reference
interchangeable
AS4857D06Interchangeable
interchangeable cross-reference
interchangeable
AS4857D03Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS4857J03?
AS4857J03 is a TEE,PIPE.
What parts can replace AS4857J03?
There are 17 known substitutes for AS4857J03: AS4857, AS4842, AS4857-03 and 14 more. Substitute compatibility should be verified for your specific system.
Is AS4857J03 still available?
AS4857J03 is currently cancelled.
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