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2588789 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

2588789: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING BODY, leg_length: 0.864 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN, seat_angle: 37.0 DEGREES, thread_class: 3A ALL ENDS A, overall_length: 3.470 INCHES MINIMUM AND 3.494 INCHES MAXIMUM IN, connection_type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-039-0390, 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
2588789
NSN: 4730-00-039-0390
NIINs: 000390390, 001850973, 001850985, 001850986, 001866512, 001866513, 011235718, 011391006, 011400510
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING BODY
leg_length0.864 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN
seat_angle37.0 DEGREES
thread_class3A ALL ENDS A
overall_length3.470 INCHES MINIMUM AND 3.494 INCHES MAXIMUM IN
connection_typeEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
connection_styleFLARED ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentPASSIVATE BODY
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.062 INCHES ALL ENDS IN
maximum_operating_temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4730-00-039-0390
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2588789 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BODY
•
CONNECTION STYLE: FLARED ALL ENDS
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
MATING END IDENTIFICATION: BRUNING CO. COUPLING HALF,QUICK DISCONNECT,PART NO. 7112-051
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.500 INCHES ALL ENDS IN
•
LEG LENGTH: 0.657 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BODY
CONNECTION STYLEFLARED ALL ENDS
CRITICALITY CODE JUSTIFICATIONFEAT
MATING END IDENTIFICATIONBRUNING CO. COUPLING HALF,QUICK DISCONNECT,PART NO. 7112-051
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH2.767 INCHES NOMINAL IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES ALL ENDS IN
LEG LENGTH0.657 INCHES NOMINAL IN
FEATURES PROVIDEDSAFETY LOCKING FEATURE AND SELF-SEALING
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SUBSTITUTES & CROSS-REFERENCES 2
2588789-8Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7112-050Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2588789?
2588789 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 2588789?
There are 2 known substitutes for 2588789: 2588789-8, 7112-050. Substitute compatibility should be verified for your specific system.
What is the NSN for 2588789?
2588789 is cataloged in the U.S. Government catalog under NSN 4730-00-039-0390. This indicates validated use in U.S. government and defense supply chains.
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