PartsTable
Technical Data Sheet
U1-4D ✓ 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: COPPER ALLOY 377 OR COPPER ALLOY 360 OVERALL, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) FIRST END, special_features: HEAVY DUTY WT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-845-6078, 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
U1-4D
NSN: 4730-00-845-6078
FSC: 4730
CAGE: 33334 — KEROTEST MANUFACTURING CORP. (USA)
SPECIFICATIONS
materialCOPPER ALLOY 377 OR COPPER ALLOY 360 OVERALL
seat_angle45.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) FIRST END
special_featuresHEAVY DUTY WT
operating_pressure1400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.500 INCHES SECOND END IN
maximum_operating_temp250.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length1.540 INCHES IN
thread_series_designatorNPTF SECOND END
material_document_and_classificationQQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN4730-00-845-6078
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: U1-4D · 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
SEAT ANGLE: 45.0 DEGREES FIRST END
THREAD SERIES DESIGNATOR: NPTF SECOND END
NOMINAL OVERALL LENGTH: 1.540 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIAL: COPPER ALLOY 377 OR COPPER ALLOY 360 OVERALL
OPERATING PRESSURE: 1400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
CONNECTION STYLE: FLARED (TUBE) FIRST END
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
SEAT ANGLE45.0 DEGREES FIRST END
THREAD SERIES DESIGNATORNPTF SECOND END
NOMINAL OVERALL LENGTH1.540 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALCOPPER ALLOY 377 OR COPPER ALLOY 360 OVERALL
OPERATING PRESSURE1400.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
CONNECTION STYLEFLARED (TUBE) FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL THREAD SIZE0.500 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
48FInterchangeable
interchangeable cross-reference
interchangeable
0204-8-8BInterchangeable
interchangeable cross-reference
interchangeable
46X8X8Interchangeable
interchangeable cross-reference
interchangeable
J512Interchangeable
interchangeable cross-reference
interchangeable
U1-4CInterchangeable
interchangeable cross-reference
interchangeable
648-F-04X06Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is U1-4D?
U1-4D is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace U1-4D?
There are 28 known substitutes for U1-4D: 48F, 0204-8-8B, 46X8X8 and 25 more. Substitute compatibility should be verified for your specific system.
Is U1-4D still available?
U1-4D is currently cancelled.
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