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4638K651 — BUSHING,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4638K651: BUSHING,PIPE.

The BUSHING,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL, style_designator: OUTSIDE HEXAGON, external_thread_size: 18, internal_thread_size: 27, end_item_identification: 3825-01-577-2713, external_thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-591-4217, 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
4638K651
NSN: 4730-01-591-4217
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL
style_designatorOUTSIDE HEXAGON
external_thread_size18
internal_thread_size27
end_item_identification3825-01-577-2713
external_thread_directionRIGHT-HAND
internal_thread_directionRIGHT-HAND
working_temp_and_service_type72.0 DEG FAHRENHEIT NOMINAL WATER
working_pressure_and_service_type150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM WATER LBS
external_screw_thread_series_designatorNPTF
internal_screw_thread_series_designatorNPTF
part_name_assigned_by_controlling_agencyZINC-PLATED STEEL HEX BUSHING - 1/4 MALE X 1/8 FEMALE PIPE SIZE
NSN4730-01-591-4217
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4638K651 · 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
•
WORKING TEMP AND SERVICE TYPE: 72.0 DEG FAHRENHEIT NOMINAL WATER
•
INTERNAL SCREW THREAD SERIES DESIGNATOR: NPTF
•
INTERNAL THREAD DIRECTION: RIGHT-HAND
•
STYLE DESIGNATOR: OUTSIDE HEXAGON
•
EXTERNAL SCREW THREAD SERIES DESIGNATOR: NPTF
•
EXTERNAL THREAD SIZE: 18
TECHNICAL CHARACTERISTICS
WORKING TEMP AND SERVICE TYPE72.0 DEG FAHRENHEIT NOMINAL WATER
INTERNAL SCREW THREAD SERIES DESIGNATORNPTF
INTERNAL THREAD DIRECTIONRIGHT-HAND
STYLE DESIGNATOROUTSIDE HEXAGON
EXTERNAL SCREW THREAD SERIES DESIGNATORNPTF
EXTERNAL THREAD SIZE18
PART NAME ASSIGNED BY CONTROLLING AGENCYZINC-PLATED STEEL HEX BUSHING - 1/4 MALE X 1/8 FEMALE PIPE SIZE
END ITEM IDENTIFICATION3825-01-577-2713
INTERNAL THREAD SIZE27
MATERIALSTEEL
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

No substitute or cross-reference records for this part.

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 4638K651?
4638K651 is a BUSHING,PIPE.
What is the NSN for 4638K651?
4638K651 is cataloged in the U.S. Government catalog under NSN 4730-01-591-4217. This indicates validated use in U.S. government and defense supply chains.
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