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618AS371-3 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

618AS371-3: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include depth: 1.320 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, leg_length: 1.400 INCHES NOMINAL IN, overall_length: 2.940 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END, connection_style: PUSH (EXTERNAL) FIRST QUICK DISCONNECT END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-534-8661, 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
618AS371-3
NSN: 4730-01-534-8661
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
depth1.320 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
leg_length1.400 INCHES NOMINAL IN
overall_length2.940 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
connection_stylePUSH (EXTERNAL) FIRST QUICK DISCONNECT END
special_featuresO'RING, MILITARY VARIATION OF BUNA N FOR HYDROCARBON FUELS; 316 STAINLESS STEEL; INCLUDES SELFSEALING VALVE
style_designatorFEMALE COUPLING HALF
features_providedSELF-SEALING
operating_pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size2.000 INCHES FIRST FLUID END CONNECTION IN
maximum_operating_temp160.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN4730-01-534-8661
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 618AS371-3 · 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
•
NOMINAL PIPE SIZE ACCOMMODATED: 2.000 INCHES FIRST FLUID END CONNECTION IN
•
CONNECTION STYLE: PLAIN FIRST FLUID END CONNECTION
•
MATING END IDENTIFICATION: SNAP-TITE VHC32-32F OR 9400 SERIES
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
•
STYLE DESIGNATOR: FEMALE COUPLING HALF
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES FIRST FLUID END CONNECTION IN
CONNECTION STYLEPLAIN FIRST FLUID END CONNECTION
CONNECTION STYLEPUSH (EXTERNAL) FIRST QUICK DISCONNECT END
MATING END IDENTIFICATIONSNAP-TITE VHC32-32F OR 9400 SERIES
CONNECTION TYPETHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
CONNECTION TYPEEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
STYLE DESIGNATORFEMALE COUPLING HALF
OVERALL LENGTH2.940 INCHES NOMINAL IN
OPERATING PRESSURE4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
QUICK DISCONNECT NOMINAL SIZE2.000 INCHES FIRST QUICK DISCONNECT END IN
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 2
BVHN32-32MJFReference document
Same NSN cross-reference
Reference document — Secondary reference
SVHN32-32FJFSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 618AS371-3?
618AS371-3 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 618AS371-3?
There are 2 known substitutes for 618AS371-3: BVHN32-32MJF, SVHN32-32FJF. Substitute compatibility should be verified for your specific system.
What is the NSN for 618AS371-3?
618AS371-3 is cataloged in the U.S. Government catalog under NSN 4730-01-534-8661. 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.