PartsTable
Technical Data Sheet
74259A ✓ 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 OR COPPER OVERALL, connection_type: THREADED INTERNAL PIPE SECOND END, connection_style: PLAIN (TUBE) FIRST END, operating_pressure: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.500 INCHES SECOND END IN, nominal_overall_length: 1.365 INCHES IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-702-8804, 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
74259A
NSN: 4730-00-702-8804
FSC: 4730
CAGE: 00742 — AIR PRODUCTS & CHEMICALS, INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OR COPPER OVERALL
connection_typeTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN (TUBE) FIRST END
operating_pressure300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.500 INCHES SECOND END IN
nominal_overall_length1.365 INCHES IN
media_for_which_designedHYDRAULIC FLUID SINGLE RESPONSE
thread_series_designatorNPT SECOND END
nondefinitive_spec/std_dataI TYPE
nominal_outside_diameter_tube_accommodated0.625 INCHES FIRST END IN
tubing_wall_nominal_thickness_for_which_designed0.035 INCHES FIRST END IN
NSN4730-00-702-8804
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 74259A · 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
NOMINAL OVERALL LENGTH: 1.365 INCHES IN
MATERIAL: COPPER ALLOY OR COPPER OVERALL
CONNECTION TYPE: THREADED INTERNAL PIPE SECOND END
CONNECTION STYLE: PLAIN (PIPE) SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNED: HYDRAULIC FLUID SINGLE RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH1.365 INCHES IN
MATERIALCOPPER ALLOY OR COPPER OVERALL
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLEPLAIN (TUBE) FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNEDHYDRAULIC FLUID SINGLE RESPONSE
CONNECTION TYPEUNTHREADED INTERNAL TUBE FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
NONDEFINITIVE SPEC/STD DATAI TYPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
2001-4Interchangeable
interchangeable cross-reference
interchangeable
WE-503 3INInterchangeable
interchangeable cross-reference
interchangeable
607-2 3INInterchangeable
interchangeable cross-reference
interchangeable
9975199-25Interchangeable
interchangeable cross-reference
interchangeable
110 7/32Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74259A?
74259A is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 74259A?
There are 23 known substitutes for 74259A: 2001-4, WE-503 3IN, 607-2 3IN and 20 more. Substitute compatibility should be verified for your specific system.
Is 74259A still available?
74259A is currently cancelled.
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