PartsTable
Technical Data Sheet
633-A 3IN ✓ Verified by PartsTable
· HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 1.219 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN, overall_length: 2.750 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF, surface_treatment: ANODIZE BODY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-079-1364, 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
633-A 3IN
NSN: 4730-00-079-1364
FSC: 4730
CAGE: 9H113 — DOVER RESOURCES INC DBA OPW ENGINEERED SYSTEMS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length1.219 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
overall_length2.750 INCHES MINIMUM AND 2.812 INCHES MAXIMUM IN
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentANODIZE BODY
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size3.000 INCHES ALL ENDS IN
end_item_identificationMILITARY CARGO TRUCKS
quick_disconnect_methodCAM-LOCKING ALL ENDS
thread_series_designatorNPT ALL ENDS
quick_disconnect_nominal_size3.219 INCHES ALL ENDS IN
NSN4730-00-079-1364
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 633-A 3IN · 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: MIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE BODY
THREAD SERIES DESIGNATOR: NPT ALL ENDS
QUICK DISCONNECT METHOD: CAM-LOCKING ALL ENDS
QUICK DISCONNECT NOMINAL SIZE: 3.219 INCHES ALL ENDS IN
CONNECTION STYLE: PLAIN ALL ENDS
LEG LENGTH: 1.219 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE BODY
THREAD SERIES DESIGNATORNPT ALL ENDS
QUICK DISCONNECT METHODCAM-LOCKING ALL ENDS
END ITEM IDENTIFICATIONMILITARY CARGO TRUCKS
QUICK DISCONNECT NOMINAL SIZE3.219 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN ALL ENDS
LEG LENGTH1.219 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
SURFACE TREATMENTANODIZE BODY
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
A-A-59326/1Interchangeable
interchangeable cross-reference
interchangeable
MS27020-11Interchangeable
interchangeable cross-reference
interchangeable
300705Interchangeable
interchangeable cross-reference
interchangeable
633DD-4X3ALInterchangeable
interchangeable cross-reference
interchangeable
633DD4X3INALInterchangeable
interchangeable cross-reference
interchangeable
AA59326/18A-3-A-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 633-A 3IN?
633-A 3IN is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 633-A 3IN?
There are 33 known substitutes for 633-A 3IN: A-A-59326/1, MS27020-11, 300705 and 30 more. Substitute compatibility should be verified for your specific system.
Is 633-A 3IN still available?
633-A 3IN is currently cancelled.
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