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Technical Data Sheet
49A3818 ✓ 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 OVERALL, seat_angle: 60.0 DEGREES FIRST END, thread_class: 2C FIRST END, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: INVERTED FLARE (TUBE) FIRST END, nominal_thread_size: 1.000 INCHES SECOND END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-561-7535, 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
49A3818
NSN: 4730-00-561-7535
FSC: 4730
CAGE: 00742 — AIR PRODUCTS & CHEMICALS, INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_angle60.0 DEGREES FIRST END
thread_class2C FIRST END
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleINVERTED FLARE (TUBE) FIRST END
nominal_thread_size1.000 INCHES SECOND END IN
nominal_overall_length2.125 INCHES IN
thread_quantity_per_inch4 FIRST END
thread_series_designatorUNS FIRST END
material_document_and_classificationASTM B30-45T ASSN STD SINGLE MATERIAL RESPONSE OR QQ-B-691,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-611,COMP B,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated1.500 INCHES FIRST END IN
NSN4730-00-561-7535
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 49A3818 · 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
THREAD SERIES DESIGNATOR: UNS FIRST END
THREAD QUANTITY PER INCH: 4 FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.500 INCHES FIRST END IN
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM B30-45T ASSN STD SINGLE MATERIAL RESPONSE OR QQ-B-691,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-611,COMP B,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLE: INVERTED FLARE (TUBE) FIRST END
THREAD CLASS: 2C FIRST END
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORUNS FIRST END
THREAD QUANTITY PER INCH4 FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.500 INCHES FIRST END IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B30-45T ASSN STD SINGLE MATERIAL RESPONSE OR QQ-B-691,COMP 2 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-611,COMP B,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
THREAD CLASS2C FIRST END
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPT SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
NOMINAL OVERALL LENGTH2.125 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
9218P5D10Interchangeable
interchangeable cross-reference
interchangeable
9218X1-4XP4D10Interchangeable
interchangeable cross-reference
interchangeable
9218Interchangeable
interchangeable cross-reference
interchangeable
D15-625KPC104-11Interchangeable
interchangeable cross-reference
interchangeable
D15-625FPC104-11Interchangeable
interchangeable cross-reference
interchangeable
10C1512Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 49A3818?
49A3818 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 49A3818?
There are 21 known substitutes for 49A3818: 9218P5D10, 9218X1-4XP4D10, 9218 and 18 more. Substitute compatibility should be verified for your specific system.
Is 49A3818 still available?
49A3818 is currently cancelled.
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