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F278-5725-1 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

F278-5725-1: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include overall_length: 2.710 INCHES NOMINAL IN, connection_type: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION, connection_style: BEADED ALL ENDS, special_features: CLEAN FOR OXYGEN SERVICE PER EPS 83149, style_designator: MALE COUPLING HALF, nominal_inside_diameter_hose_accommodated: 0.706 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-359-0618, 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
F278-5725-1
NSN: 4730-01-359-0618
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 04577 — MISSION SYSTEMS ORCHARD PARK INC (USA)
SPECIFICATIONS
overall_length2.710 INCHES NOMINAL IN
connection_typeUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
connection_styleBEADED ALL ENDS
special_featuresCLEAN FOR OXYGEN SERVICE PER EPS 83149
style_designatorMALE COUPLING HALF
nominal_inside_diameter_hose_accommodated0.706 INCHES ALL ENDS IN
NSN4730-01-359-0618
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: F278-5725-1 · 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: BEADED ALL ENDS
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.706 INCHES ALL ENDS IN
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
TECHNICAL CHARACTERISTICS
CONNECTION STYLEBEADED ALL ENDS
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.706 INCHES ALL ENDS IN
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.710 INCHES NOMINAL IN
SPECIAL FEATURESCLEAN FOR OXYGEN SERVICE PER EPS 83149
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 F278-5725-1?
F278-5725-1 is a COUPLING HALF,QUICK DISCONNECT.
What is the NSN for F278-5725-1?
F278-5725-1 is cataloged in the U.S. Government catalog under NSN 4730-01-359-0618. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.