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4838K47 — UNION,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4838K47: UNION,PIPE.

The UNION,PIPE is a the manufacturer industrial component. Key specifications include material: COPPER TAILPIECE, connection_type: UNTHREADED INTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) FIRST END, operating_pressure: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 210.0 FAHRENHEIT SINGLE RESPONSE DEGF, media_for_which_designed: AIR FIRST RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-277-7539, 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
4838K47
NSN: 4730-01-277-7539
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialCOPPER TAILPIECE
connection_typeUNTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) FIRST END
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp210.0 FAHRENHEIT SINGLE RESPONSE DEGF
media_for_which_designedAIR FIRST RESPONSE
thread_series_designatorNPT FIRST END
nominal_pipe_size_accommodated1.250 INCHES SECOND END IN
NSN4730-01-277-7539
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4838K47 · 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 PIPE SIZE ACCOMMODATED: 1.250 INCHES SECOND END IN
•
CONNECTION STYLE: SOCKET (PIPE) SECOND END
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST END
•
OPERATING PRESSURE: 250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MAXIMUM OPERATING TEMP: 210.0 FAHRENHEIT SINGLE RESPONSE DEGF
•
MEDIA FOR WHICH DESIGNED: WATER SECOND RESPONSE
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED1.250 INCHES SECOND END IN
CONNECTION STYLESOCKET (PIPE) SECOND END
CONNECTION STYLEPLAIN (PIPE) FIRST END
CONNECTION TYPETHREADED INTERNAL PIPE FIRST END
CONNECTION TYPEUNTHREADED INTERNAL PIPE SECOND END
OPERATING PRESSURE250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP210.0 FAHRENHEIT SINGLE RESPONSE DEGF
MEDIA FOR WHICH DESIGNEDWATER SECOND RESPONSE
MEDIA FOR WHICH DESIGNEDAIR FIRST RESPONSE
MATERIALCOPPER TAILPIECE
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
4838K34Reference 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 4838K47?
4838K47 is a UNION,PIPE.
What parts can replace 4838K47?
There is 1 known substitute for 4838K47: 4838K34. Substitute compatibility should be verified for your specific system.
What is the NSN for 4838K47?
4838K47 is cataloged in the U.S. Government catalog under NSN 4730-01-277-7539. This indicates validated use in U.S. government and defense supply chains.
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