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Technical Data Sheet
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XH5543 ✓ 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 COUPLING,TUBE is a the manufacturer industrial component. Key specifications include diameter: 0.071 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN, shaft_type: ROUND SINGLE ACTUATOR, wheel_style: STRAIGHT, shaft_length: 0.718 INCHES MINIMUM AND 0.782 INCHES MAXIMUM SINGLE ACTUATOR IN, usage_design: DENTAL, body_diameter: 0.368 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-379-0058, 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
XH5543
NSN: 4730-00-379-0058
FSC: 4730
CAGE: 00642 — HEALE MANUFACTURING CO LLC (USA)
SPECIFICATIONS
diameter0.071 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
shaft_typeROUND SINGLE ACTUATOR
wheel_styleSTRAIGHT
shaft_length0.718 INCHES MINIMUM AND 0.782 INCHES MAXIMUM SINGLE ACTUATOR IN
usage_designDENTAL
body_diameter0.368 INCHES NOMINAL IN
hole_diameter0.071 INCHES MINIMUM AND 0.081 INCHES MAXIMUM IN
overall_width1.422 INCHES MINIMUM AND 1.454 INCHES MAXIMUM IN
terminal_typeTAB, SOLDER LUG
thread_length0.375 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
body_thickness0.018 INCHES MAXIMUM IN
overall_height1.484 INCHES MINIMUM AND 1.516 INCHES MAXIMUM IN
NSN4730-00-379-0058
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: XH5543 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
5169Interchangeable
interchangeable cross-reference
interchangeable
27630Interchangeable
PCI RAID Disk Unit Controller
interchangeable
7221Interchangeable
interchangeable cross-reference
interchangeable
325W425Interchangeable
interchangeable cross-reference
interchangeable
24W3630Interchangeable
interchangeable cross-reference
interchangeable
6184171Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XH5543?
XH5543 is a COUPLING,TUBE.
What parts can replace XH5543?
There are 8 known substitutes for XH5543: 5169, 27630, 7221 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for XH5543?
XH5543 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-379-0058. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026