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PartsTable / COMPONENT / CFHX1-504259
CFHX1-504259 ✓ 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

SLEEVE,COMPRESSION,TUBE-HOSE FIT. Key specifications include material: COPPER ALLOY OVERALL, nut_style: TUBE COUPLING, nut_height: 1.000 INCHES NOMINAL IN, seat_angle: 20.00 DEGREES NOMINAL, thread_series: UNS, special_features: SUPPORTS HARNISCHFEGER CORP.;MODEL M320T2,CRANE TRUCK MOUNTED,NSN 3810-00-151-4431. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-278-8825, 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
CFHX1-504259
NSN: 4730-00-278-8825
FSC: 4730
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
nut_styleTUBE COUPLING
nut_height1.000 INCHES NOMINAL IN
seat_angle20.00 DEGREES NOMINAL
thread_seriesUNS
special_featuresSUPPORTS HARNISCHFEGER CORP.;MODEL M320T2,CRANE TRUCK MOUNTED,NSN 3810-00-151-4431
thread_directionRIGHT-HAND
fabrication_methodMACHINED
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.513 INCHES IN
thread_pitch_diameters+0.5041 TO 0.5092 INCHES IN
smallest_inside_diameter0.382 INCHES NOMINAL IN
NSN4730-00-278-8825
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CFHX1-504259 · 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
•
NONDEFINITIVE SPEC/STD DATA: 5 FIGURE
•
NOMINAL THREAD SIZE: 0.513 INCHES IN
•
SEAT ANGLE: 20.00 DEGREES NOMINAL
•
THREAD SERIES: UNS
•
SMALLEST INSIDE DIAMETER: 0.382 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 24
•
NOMINAL TUBE OUTSIDE DIAMETER: 0.375 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA5 FIGURE
SPECIAL FEATURESSUPPORTS HARNISCHFEGER CORP.;MODEL M320T2,CRANE TRUCK MOUNTED,NSN 3810-00-151-4431
NOMINAL THREAD SIZE0.513 INCHES IN
SEAT ANGLE20.00 DEGREES NOMINAL
THREAD SERIESUNS
SMALLEST INSIDE DIAMETER0.382 INCHES NOMINAL IN
THREAD QUANTITY PER INCH24
NOMINAL TUBE OUTSIDE DIAMETER0.375 INCHES IN
MATERIALCOPPER ALLOY OVERALL
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
103383Interchangeable
interchangeable cross-reference
interchangeable
72005SInterchangeable
interchangeable cross-reference
interchangeable
3B4613Interchangeable
interchangeable cross-reference
interchangeable
907AInterchangeable
interchangeable cross-reference
interchangeable
8-2203Interchangeable
interchangeable cross-reference
interchangeable
1286Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CFHX1-504259?
CFHX1-504259 is a SLEEVE,COMPRESSION,TUBE-HOSE FIT.
What parts can replace CFHX1-504259?
There are 26 known substitutes for CFHX1-504259: 103383, 72005S, 3B4613 and 23 more. Substitute compatibility should be verified for your specific system.
Is CFHX1-504259 still available?
CFHX1-504259 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026