PartsTable
Technical Data Sheet
149-4A ✓ 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

CABLE ASSEMBLY,SPECIAL PURPOSE,E. Key specifications include material: COPPER ALLOY OVERALL, flow_angle: 82.0 DEGREES, leg_length: 0.328 INCHES NOMINAL FIRST END IN, seat_angle: 45.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED EXTERNAL PIPE SECOND END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-335-2578, 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
149-4A
NSN: 4730-00-335-2578
FSC: 4730
CAGE: 36655 — FAIRVIEW FITTINGS AND MFG LTD (CAN)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
flow_angle82.0 DEGREES
leg_length0.328 INCHES NOMINAL FIRST END IN
seat_angle45.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) FIRST END
nominal_thread_size0.125 INCHES SECOND END IN
thread_quantity_per_inch20 FIRST END
thread_series_designatorUNS FIRST END
nominal_pipe_size_accommodated0.125 INCHES SECOND END IN
reduced_passage_nominal_inside_diameter0.065 INCHES SECOND END IN
NSN4730-00-335-2578
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 149-4A · 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: NPTF SECOND END
CONNECTION STYLE: PLAIN (PIPE) SECOND END
SEAT ANGLE: 45.0 DEGREES FIRST END
MATERIAL: COPPER ALLOY OVERALL
REDUCED PASSAGE NOMINAL INSIDE DIAMETER: 0.065 INCHES SECOND END IN
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPTF SECOND END
CONNECTION STYLEPLAIN (PIPE) SECOND END
SEAT ANGLE45.0 DEGREES FIRST END
CONNECTION STYLEPLAIN (PIPE) FIRST END
MATERIALCOPPER ALLOY OVERALL
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.065 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
THREAD SERIES DESIGNATORUNS FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
3398Interchangeable
interchangeable cross-reference
interchangeable
10105385-4Interchangeable
interchangeable cross-reference
interchangeable
5-0-240AInterchangeable
interchangeable cross-reference
interchangeable
5-0-240Interchangeable
interchangeable cross-reference
interchangeable
5040-905Interchangeable
interchangeable cross-reference
interchangeable
B11079Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 149-4A?
149-4A is a CABLE ASSEMBLY,SPECIAL PURPOSE,E.
What parts can replace 149-4A?
There are 27 known substitutes for 149-4A: 3398, 10105385-4, 5-0-240A and 24 more. Substitute compatibility should be verified for your specific system.
Is 149-4A still available?
149-4A is currently cancelled.
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