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ER783D080404 ✓ 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: ALUMINUM ALLOY OVERALL, leg_length: 1.258 INCHES NOMINAL SECOND END IN, seat_angle: 12.0 DEGREES SECOND END, thread_class: 2A FIRST END A, connection_style: FLARELESS (TUBE) SECOND END, surface_treatment: ANODIZE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-053-1068, 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
ER783D080404
NSN: 4730-00-053-1068
FSC: 4730
CAGE: 45681 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV CORPORATE HEADQUARTERS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
leg_length1.258 INCHES NOMINAL SECOND END IN
seat_angle12.0 DEGREES SECOND END
thread_class2A FIRST END A
connection_styleFLARELESS (TUBE) SECOND END
surface_treatmentANODIZE OVERALL
nominal_thread_size0.750 INCHES FIRST END BULKHEAD IN
thread_series_designatorUNF ALL ENDS
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END BULKHEAD IN
NSN4730-00-053-1068
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ER783D080404 · 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: FLARELESS (TUBE) FIRST END
•
THREAD CLASS: 2A FIRST END BULKHEAD A
•
SURFACE TREATMENT: ANODIZE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES SECOND END IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END BULKHEAD IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEFLARELESS (TUBE) FIRST END
THREAD CLASS2A FIRST END BULKHEAD A
SURFACE TREATMENTANODIZE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES SECOND END IN
MATERIALALUMINUM ALLOY OVERALL
NOMINAL THREAD SIZE0.750 INCHES FIRST END BULKHEAD IN
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
NOMINAL THREAD SIZE0.438 INCHES THIRD END IN
THREAD SERIES DESIGNATORUNF ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END BULKHEAD IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
MIL-F-18280Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ER783D080404?
ER783D080404 is a TEE,TUBE TO BOSS.
What parts can replace ER783D080404?
There is 1 known substitute for ER783D080404: MIL-F-18280. Substitute compatibility should be verified for your specific system.
What is the NSN for ER783D080404?
ER783D080404 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-053-1068. 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