PartsTable
Technical Data Sheet
5520K14 ✓ 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, connection_type: UNTHREADED INTERNAL TUBE FIRST END, connection_style: PLAIN (PIPE) SECOND END, surface_treatment: COPPER ALLOY OVERALL, thread_series_designator: NPT SECOND END, nominal_pipe_size_accommodated: 1.250 INCHES FIRST END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-276-6945, 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
5520K14
NSN: 4730-01-276-6945
FSC: 4730
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeUNTHREADED INTERNAL TUBE FIRST END
connection_stylePLAIN (PIPE) SECOND END
surface_treatmentCOPPER ALLOY OVERALL
thread_series_designatorNPT SECOND END
nominal_pipe_size_accommodated1.250 INCHES FIRST END IN
nominal_outside_diameter_tube_accommodated1.250 INCHES SECOND END IN
NSN4730-01-276-6945
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5520K14 · 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 TYPE: UNTHREADED INTERNAL TUBE FIRST END
SURFACE TREATMENT: COPPER ALLOY OVERALL
CONNECTION STYLE: PLAIN (TUBE) FIRST END
THREAD SERIES DESIGNATOR: NPT SECOND END
NOMINAL PIPE SIZE ACCOMMODATED: 1.250 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.250 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
SURFACE TREATMENTCOPPER ALLOY OVERALL
CONNECTION STYLEPLAIN (TUBE) FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
NOMINAL PIPE SIZE ACCOMMODATED1.250 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.250 INCHES SECOND END IN
MATERIALCOPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
9995453-2Interchangeable
interchangeable cross-reference
interchangeable
4860725-3Interchangeable
interchangeable cross-reference
interchangeable
124G846-3Interchangeable
interchangeable cross-reference
interchangeable
9800002Interchangeable
interchangeable cross-reference
interchangeable
6000002Interchangeable
interchangeable cross-reference
interchangeable
C404Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5520K14?
5520K14 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 5520K14?
There are 12 known substitutes for 5520K14: 9995453-2, 4860725-3, 124G846-3 and 9 more. Substitute compatibility should be verified for your specific system.
Is 5520K14 still available?
5520K14 is currently cancelled.
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