PartsTable
Technical Data Sheet
C5-59-312-2 ✓ 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 HOSE is a the manufacturer industrial component. Key specifications include connection_type: THREADED EXTERNAL PIPE FIRST END, connection_style: BARBED OR BEADED (HOSE) SECOND END, nominal_thread_size: 0.250 INCHES FIRST END IN, thread_series_designator: NPT FIRST END, nominal_pipe_size_accommodated: 0.250 INCHES FIRST END IN, nominal_inside_diameter_hose_accommodated: 0.375 INCHES SECOND END IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-900-6279, 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
C5-59-312-2
NSN: 4730-00-900-6279
FSC: 4730
CAGE: 81361 — EDGEWOOD CHEMICAL BIOLOGICAL CENTER ECBC (USA)
SPECIFICATIONS
connection_typeTHREADED EXTERNAL PIPE FIRST END
connection_styleBARBED OR BEADED (HOSE) SECOND END
nominal_thread_size0.250 INCHES FIRST END IN
thread_series_designatorNPT FIRST END
nominal_pipe_size_accommodated0.250 INCHES FIRST END IN
nominal_inside_diameter_hose_accommodated0.375 INCHES SECOND END IN
NSN4730-00-900-6279
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: C5-59-312-2 · 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 STYLE: BARBED OR BEADED (HOSE) SECOND END
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES FIRST END IN
THREAD SERIES DESIGNATOR: NPT FIRST END
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.375 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEBARBED OR BEADED (HOSE) SECOND END
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPT FIRST END
CONNECTION TYPEUNTHREADED EXTERNAL HOSE SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.375 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
3F3049Interchangeable
interchangeable cross-reference
interchangeable
593Interchangeable
interchangeable cross-reference
interchangeable
BT593Interchangeable
interchangeable cross-reference
interchangeable
21504Interchangeable
interchangeable cross-reference
interchangeable
GGG-P-831Interchangeable
interchangeable cross-reference
interchangeable
71504Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is C5-59-312-2?
C5-59-312-2 is a ADAPTER,STRAIGHT,PIPE TO HOSE.
What parts can replace C5-59-312-2?
There are 24 known substitutes for C5-59-312-2: 3F3049, 593, BT593 and 21 more. Substitute compatibility should be verified for your specific system.
Is C5-59-312-2 still available?
C5-59-312-2 is currently cancelled.
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