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Technical Data Sheet

TYPE253 3/4 IN.IPS — REDUCER,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

TYPE253 3/4 IN.IPS: REDUCER,TUBE.

The REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, reducer_type: CONCENTRIC, thread_class: 2A FIRST END A, connection_type: UNTHREADED EXTERNAL TUBE SECOND END, connection_style: PLAIN (TUBE) SECOND END, nominal_thread_size: 1.375 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-151-3847, 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
TYPE253 3/4 IN.IPS
NSN: 4730-01-151-3847
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 61965 — CBC MACHINE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
reducer_typeCONCENTRIC
thread_class2A FIRST END A
connection_typeUNTHREADED EXTERNAL TUBE SECOND END
connection_stylePLAIN (TUBE) SECOND END
nominal_thread_size1.375 INCHES FIRST END IN
nominal_overall_length5.641 INCHES IN
thread_quantity_per_inch16 FIRST END
thread_series_designatorUN FIRST END
nominal_outside_diameter_tube_accommodated1.500 INCHES SECOND END IN
NSN4730-01-151-3847
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: TYPE253 3/4 IN.IPS · 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
•
CONNECTION STYLE: PLAIN (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 5.641 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.000 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 1.375 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (TUBE) SECOND END
CONNECTION STYLEPLAIN (TUBE) FIRST END
NOMINAL OVERALL LENGTH5.641 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPEUNTHREADED EXTERNAL TUBE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.000 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.500 INCHES SECOND END IN
NOMINAL THREAD SIZE1.375 INCHES FIRST END IN
THREAD CLASS2A FIRST END A
THREAD QUANTITY PER INCH16 FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
TYPE 253 T.O.E.Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is TYPE253 3/4 IN.IPS?
TYPE253 3/4 IN.IPS is a REDUCER,TUBE.
What parts can replace TYPE253 3/4 IN.IPS?
There is 1 known substitute for TYPE253 3/4 IN.IPS: TYPE 253 T.O.E.. Substitute compatibility should be verified for your specific system.
What is the NSN for TYPE253 3/4 IN.IPS?
TYPE253 3/4 IN.IPS is cataloged in the U.S. Government catalog under NSN 4730-01-151-3847. This indicates validated use in U.S. government and defense supply chains.
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