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633LAT-3X4AL — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

633LAT-3X4AL: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 0.375 INCHES NOMINAL IN, connection_style: PLAIN ALL ENDS, special_features: WEAPON SYSTEM ESSENTIAL, style_designator: MALE COUPLING HALF, basic_shape_style: ROUND FIRST FLUID END CONNECTION. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-075-2423, 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
633LAT-3X4AL
NSN: 4730-00-075-2423
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 9H113 — DOVER RESOURCES INC DBA OPW ENGINEERED SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length0.375 INCHES NOMINAL IN
connection_stylePLAIN ALL ENDS
special_featuresWEAPON SYSTEM ESSENTIAL
style_designatorMALE COUPLING HALF
basic_shape_styleROUND FIRST FLUID END CONNECTION
nominal_thickness0.375 INCHES IN
surface_treatmentANODIZE BODY
bolt_hole_quantity8
end_item_identificationFUEL SYS SUPPLY POINT (FSSP).
quick_disconnect_methodCAM-LOCKING ALL ENDS
nominal_outside_diameter6.750 INCHES IN
NSN4730-00-075-2423
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 633LAT-3X4AL · 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: PLAIN ALL ENDS
•
BOLT CIRCLE NOMINAL DIAMETER: 5.8905 INCHES IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
BOLT HOLE NOMINAL DIAMETER: 0.437 INCHES IN
•
QUICK DISCONNECT NOMINAL SIZE: 3.188 INCHES ALL ENDS IN
•
LEG LENGTH: 0.375 INCHES NOMINAL IN
•
BASIC SHAPE STYLE: ROUND FIRST FLUID END CONNECTION
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER5.8905 INCHES IN
CRITICALITY CODE JUSTIFICATIONFEAT
STYLE DESIGNATORMALE COUPLING HALF
BOLT HOLE NOMINAL DIAMETER0.437 INCHES IN
QUICK DISCONNECT NOMINAL SIZE3.188 INCHES ALL ENDS IN
LEG LENGTH0.375 INCHES NOMINAL IN
BASIC SHAPE STYLEROUND FIRST FLUID END CONNECTION
NOMINAL OUTSIDE DIAMETER6.750 INCHES IN
BOLT HOLE QUANTITY8
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 3
633LAT3X4Reference document
Same NSN cross-reference
Reference document — Secondary reference
3040-ALTReference document
Same NSN cross-reference
Reference document — Secondary reference
633LAT-AL34Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 633LAT-3X4AL?
633LAT-3X4AL is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 633LAT-3X4AL?
There are 3 known substitutes for 633LAT-3X4AL: 633LAT3X4, 3040-ALT, 633LAT-AL34. Substitute compatibility should be verified for your specific system.
What is the NSN for 633LAT-3X4AL?
633LAT-3X4AL is cataloged in the U.S. Government catalog under NSN 4730-00-075-2423. 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.