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PartsTable / COMPONENT / ER834J040808
ER834J040808 ✓ 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,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.227 INCHES NOMINAL THIRD END IN, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 3A FIRST END BULKHEAD A, connection_type: THREADED EXTERNAL TUBE ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-255-4331, 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
ER834J040808
NSN: 4730-01-255-4331
FSC: 4730
CAGE: 09523 — PARKER-HANNIFIN CORPORATION DIV GAS TURBINE FUEL SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
flow_angle90.0 DEGREES
leg_length1.227 INCHES NOMINAL THIRD END IN
seat_angle12.0 DEGREES ALL ENDS
thread_class3A FIRST END BULKHEAD A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.750 INCHES SECOND END IN
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.250 INCHES THIRD END IN
NSN4730-01-255-4331
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ER834J040808 · 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
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES THIRD END IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END BULKHEAD IN
•
LEG LENGTH: 1.227 INCHES NOMINAL THIRD END IN
•
FLOW ANGLE: 90.0 DEGREES
•
THREAD CLASS: 3A FIRST END BULKHEAD A
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES THIRD END IN
SURFACE TREATMENTPASSIVATE OVERALL
NOMINAL THREAD SIZE0.750 INCHES FIRST END BULKHEAD IN
LEG LENGTH1.227 INCHES NOMINAL THIRD END IN
FLOW ANGLE90.0 DEGREES
THREAD CLASS3A FIRST END BULKHEAD A
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) FIRST END BULKHEAD
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
AS18280Interchangeable
interchangeable cross-reference
interchangeable
ER834D060604Interchangeable
interchangeable cross-reference
interchangeable
36T21 S3773Interchangeable
interchangeable cross-reference
interchangeable
110-354Interchangeable
interchangeable cross-reference
interchangeable
SE11S6261Interchangeable
interchangeable cross-reference
interchangeable
110086Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ER834J040808?
ER834J040808 is a TEE,TUBE TO BOSS.
What parts can replace ER834J040808?
There are 15 known substitutes for ER834J040808: AS18280, ER834D060604, 36T21 S3773 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ER834J040808?
ER834J040808 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-255-4331. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026