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5859273-3 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5859273-3: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, leg_length: 1.147 INCHES NOMINAL IN, seat_angle: 37.0 DEGREES, overall_length: 2.385 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION, connection_style: FLARED ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-539-7146, 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
5859273-3
NSN: 4730-01-539-7146
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
leg_length1.147 INCHES NOMINAL IN
seat_angle37.0 DEGREES
overall_length2.385 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
connection_styleFLARED ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentPASSIVATE OVERALL
end_item_identificationAM-7493/SPY-1D(V) DDG 2317 AND 2318, AMPLIFIER
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
nominal_outside_diameter_tube_accommodated0.375 INCHES ALL ENDS IN
NSN4730-01-539-7146
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5859273-3 · 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 ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
LEG LENGTH: 1.147 INCHES NOMINAL IN
•
SEAT ANGLE: 37.0 DEGREES
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.385 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
LEG LENGTH1.147 INCHES NOMINAL IN
SEAT ANGLE37.0 DEGREES
SURFACE TREATMENTPASSIVATE OVERALL
END ITEM IDENTIFICATIONAM-7493/SPY-1D(V) DDG 2317 AND 2318, AMPLIFIER
MATERIALSTEEL CORROSION RESISTING OVERALL
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
5859273Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 5859273-3?
5859273-3 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 5859273-3?
There is 1 known substitute for 5859273-3: 5859273. Substitute compatibility should be verified for your specific system.
What is the NSN for 5859273-3?
5859273-3 is cataloged in the U.S. Government catalog under NSN 4730-01-539-7146. 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.