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Technical Data Sheet
PartsTable / COMPONENT / ER822-4D
ER822-4D ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.789 INCHES NOMINAL SECOND END IN, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-186-9978, 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
ER822-4D
NSN: 4730-00-186-9978
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 OVERALL
flow_angle90.0 DEGREES
leg_length0.789 INCHES NOMINAL SECOND END IN
seat_angle12.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleFLARELESS (TUBE) FIRST END
surface_treatmentANODIZE OVERALL
nominal_thread_size0.125 INCHES SECOND END IN
thread_series_designatorUNF FIRST END
material_document_and_classificationQQ-A-225/6,T6 OR T851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/9,T73 FED SPEC 2ND MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-00-186-9978
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ER822-4D · 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 FIRST END IN
•
SEAT ANGLE: 30.0 DEGREES SECOND END
•
MATERIAL: ALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 OVERALL
•
THREAD SERIES DESIGNATOR: ANPT SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/6,T6 OR T851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/9,T73 FED SPEC 2ND MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.125 INCHES SECOND END IN
•
CONNECTION STYLE: PLAIN (PIPE) SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
SEAT ANGLE30.0 DEGREES SECOND END
MATERIALALUMINUM ALLOY 2024 OR ALUMINUM ALLOY 7075 OVERALL
THREAD SERIES DESIGNATORANPT SECOND END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/6,T6 OR T851 FED SPEC 1ST MATERIAL RESPONSE OR QQ-A-225/9,T73 FED SPEC 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
THREAD SERIES DESIGNATORANPT SECOND END
CONNECTION STYLEPLAIN (PIPE) SECOND END
SURFACE TREATMENTANODIZE OVERALL
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
AS896-04-02Interchangeable
interchangeable cross-reference
interchangeable
AS896Interchangeable
interchangeable cross-reference
interchangeable
DB0N18D4A2Interchangeable
interchangeable cross-reference
interchangeable
ER816D4-4Interchangeable
interchangeable cross-reference
interchangeable
AS4842/2Interchangeable
interchangeable cross-reference
interchangeable
SAE-AS4842/2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ER822-4D?
ER822-4D is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace ER822-4D?
There are 25 known substitutes for ER822-4D: AS896-04-02, AS896, DB0N18D4A2 and 22 more. Substitute compatibility should be verified for your specific system.
Is ER822-4D still available?
ER822-4D is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026