PartsTable
Technical Data Sheet
XK38 ✓ 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 TUBE-BUSHING ASSEMBLY is a the manufacturer industrial component. Key specifications include material: IRON MALLEABLE OVERALL, flow_angle: 90.0 DEGREES, leg_length: 0.690 INCHES NOMINAL FIRST END IN, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND END, surface_treatment: ZINC OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-287-1649, 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
XK38
NSN: 4730-00-287-1649
FSC: 4730
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
materialIRON MALLEABLE OVERALL
flow_angle90.0 DEGREES
leg_length0.690 INCHES NOMINAL FIRST END IN
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
surface_treatmentZINC OVERALL
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.125 INCHES ALL ENDS IN
maximum_operating_temp260.0 CELSIUS SINGLE RESPONSE DEGC
media_for_which_designedSTEAM SECOND RESPONSE
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_data2 TYPE
NSN4730-00-287-1649
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: XK38 · 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
THREAD SERIES DESIGNATOR: NPT ALL ENDS
FLOW ANGLE: 90.0 DEGREES
SPECIFICATION/STANDARD DATA: 81348-WW-P-521 GOVERNMENT SPECIFICATION AND 96906-MS39230 GOVERNMENT STANDARD
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIAL: IRON MALLEABLE OVERALL
NONDEFINITIVE SPEC/STD DATA: 2 TYPE
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPT ALL ENDS
FLOW ANGLE90.0 DEGREES
SPECIFICATION/STANDARD DATA81348-WW-P-521 GOVERNMENT SPECIFICATION AND 96906-MS39230 GOVERNMENT STANDARD
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALIRON MALLEABLE OVERALL
NONDEFINITIVE SPEC/STD DATA2 TYPE
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS FIRST RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
WWP521TYPE2Interchangeable
interchangeable cross-reference
interchangeable
ASME B16.3 CL 150 3/4X1 INCHInterchangeable
interchangeable cross-reference
interchangeable
MS39232-9Interchangeable
interchangeable cross-reference
interchangeable
WWP521Interchangeable
interchangeable cross-reference
interchangeable
7534Interchangeable
interchangeable cross-reference
interchangeable
MS39232-15Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XK38?
XK38 is a TUBE-BUSHING ASSEMBLY.
What parts can replace XK38?
There are 23 known substitutes for XK38: WWP521TYPE2, ASME B16.3 CL 150 3/4X1 INCH, MS39232-9 and 20 more. Substitute compatibility should be verified for your specific system.
Is XK38 still available?
XK38 is currently cancelled.
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