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Technical Data Sheet
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W1023 ✓ 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 REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALLCOPPER ALLOY OVERALL, reducer_type: CONCENTRICCONCENTRIC, connection_type: UNTHREADED INTERNAL TUBE ALL ENDSUNTHREADED INTERNAL TUBE ALL ENDS, connection_style: SOCKET (TUBE) ALL ENDSSOCKET (TUBE) ALL ENDS, operating_pressure: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 37.8 CELSIUS SINGLE RESPONSE37.8 CELSIUS SINGLE RESPONSE DEGC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-4844, 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
W1023
NSN: 4730-00-289-4844
FSC: 4730
CAGE: 41947 — MUELLER BRASS CO. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALLCOPPER ALLOY OVERALL
reducer_typeCONCENTRICCONCENTRIC
connection_typeUNTHREADED INTERNAL TUBE ALL ENDSUNTHREADED INTERNAL TUBE ALL ENDS
connection_styleSOCKET (TUBE) ALL ENDSSOCKET (TUBE) ALL ENDS
operating_pressure175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp37.8 CELSIUS SINGLE RESPONSE37.8 CELSIUS SINGLE RESPONSE DEGC
nominal_overall_length0.625 INCHES0.625 INCHES IN
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSEWATER-OIL-GAS SINGLE RESPONSE
specification/standard_data80204-B16.22 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD80204-B16.22 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
nominal_outside_diameter_tube_accommodated0.500 INCHES FIRST END0.500 INCHES FIRST END IN
NSN4730-00-289-4844
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: W1023 · 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 OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES FIRST END0.500 INCHES FIRST END IN
•
CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDSUNTHREADED INTERNAL TUBE ALL ENDS
•
MAXIMUM OPERATING TEMP: 37.8 CELSIUS SINGLE RESPONSE37.8 CELSIUS SINGLE RESPONSE DEGC
•
CONNECTION STYLE: SOCKET (TUBE) ALL ENDSSOCKET (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 0.625 INCHES0.625 INCHES IN
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSEWATER-OIL-GAS SINGLE RESPONSE
•
OPERATING PRESSURE: 175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MATERIAL: COPPER ALLOY OVERALLCOPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END0.500 INCHES FIRST END IN
CONNECTION TYPEUNTHREADED INTERNAL TUBE ALL ENDSUNTHREADED INTERNAL TUBE ALL ENDS
MAXIMUM OPERATING TEMP37.8 CELSIUS SINGLE RESPONSE37.8 CELSIUS SINGLE RESPONSE DEGC
CONNECTION STYLESOCKET (TUBE) ALL ENDSSOCKET (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH0.625 INCHES0.625 INCHES IN
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSEWATER-OIL-GAS SINGLE RESPONSE
OPERATING PRESSURE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE175.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MATERIALCOPPER ALLOY OVERALLCOPPER ALLOY OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES SECOND END0.375 INCHES SECOND END IN
SPECIFICATION/STANDARD DATA80204-B16.22 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD80204-B16.22 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
W2023Interchangeable
interchangeable cross-reference
interchangeable
A-A-59446Interchangeable
interchangeable cross-reference
interchangeable
B16-22Interchangeable
interchangeable cross-reference
interchangeable
9975190Interchangeable
interchangeable cross-reference
interchangeable
W2036Interchangeable
interchangeable cross-reference
interchangeable
WWT725Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is W1023?
W1023 is a REDUCER,TUBE.
What parts can replace W1023?
There are 16 known substitutes for W1023: W2023, A-A-59446, B16-22 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for W1023?
W1023 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-289-4844. 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