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Technical Data Sheet

SMK20-1/4NPT-PD — COUPLING ASSEMBLY,HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SMK20-1/4NPT-PD: COUPLING ASSEMBLY,HOSE.

The COUPLING ASSEMBLY,HOSE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, connection_style: FLARED (TUBE) ALL ENDS, special_features: PRESSURE TESTING COUPLING WITH PROTECTIVE CAP, style_designator: FLARED W/ CENTER WRENCHING FACILITY, nominal_thread_size: 0.250 INCHES FIRST END IN, nominal_overall_length: 1.38 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-623-1878, 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
SMK20-1/4NPT-PD
NSN: 4730-01-623-1878
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53790 — STAUFF CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
connection_styleFLARED (TUBE) ALL ENDS
special_featuresPRESSURE TESTING COUPLING WITH PROTECTIVE CAP
style_designatorFLARED W/ CENTER WRENCHING FACILITY
nominal_thread_size0.250 INCHES FIRST END IN
nominal_overall_length1.38 INCHES IN
end_item_identificationPRESSURE TEST KIT
thread_series_designatorNPT FIRST END
part_name_assigned_by_controlling_agencyTEST PORT
NSN4730-01-623-1878
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SMK20-1/4NPT-PD · 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: FLARED (TUBE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.38 INCHES IN
•
STYLE DESIGNATOR: FLARED W/ CENTER WRENCHING FACILITY
•
NOMINAL THREAD SIZE: 0.250 INCHES FIRST END IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) ALL ENDS
NOMINAL OVERALL LENGTH1.38 INCHES IN
STYLE DESIGNATORFLARED W/ CENTER WRENCHING FACILITY
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
SPECIAL FEATURESPRESSURE TESTING COUPLING WITH PROTECTIVE CAP
PART NAME ASSIGNED BY CONTROLLING AGENCYTEST PORT
END ITEM IDENTIFICATIONPRESSURE TEST KIT
MATERIALSTEEL CORROSION RESISTING OVERALL
THREAD SERIES DESIGNATORNPT FIRST END
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SMK20-1/4NPT-PD?
SMK20-1/4NPT-PD is a COUPLING ASSEMBLY,HOSE.
What is the NSN for SMK20-1/4NPT-PD?
SMK20-1/4NPT-PD is cataloged in the U.S. Government catalog under NSN 4730-01-623-1878. This indicates validated use in U.S. government and defense supply chains.
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