PartsTable
Technical Data Sheet
CQ-3A ✓ 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, overall_length: 4.750 INCHES NOMINAL IN, connection_type: UNTHREADED INTERNAL HOSE FIRST FLUID END CONNECTION, connection_style: SOCKET ALL ENDS, special_features: MOLDED GASKETS,SPIRAL GROOVED INSIDE,SECURING HOLE FOR 10 SCREW,FLG DRILLED FOR SAFETY LOCK 1-1/4IN. ID,2-5/32IN OD IN, style_designator: MALE COUPLING HALF.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-217-9987, 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
CQ-3A
NSN: 4730-01-217-9987
FSC: 4730
CAGE: 86413 — PAULI AND GRIFFIN CO INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
overall_length4.750 INCHES NOMINAL IN
connection_typeUNTHREADED INTERNAL HOSE FIRST FLUID END CONNECTION
connection_styleSOCKET ALL ENDS
special_featuresMOLDED GASKETS,SPIRAL GROOVED INSIDE,SECURING HOLE FOR 10 SCREW,FLG DRILLED FOR SAFETY LOCK 1-1/4IN. ID,2-5/32IN OD IN
style_designatorMALE COUPLING HALF
quick_disconnect_methodTWO LUG UNIVERSAL ALL ENDS
first_end_outside_diameter_hose_accommodated1.500 INCHES NOMINAL IN
NSN4730-01-217-9987
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CQ-3A · 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
QUICK DISCONNECT METHOD: TWO LUG UNIVERSAL ALL ENDS
MATERIAL: ALUMINUM ALLOY BODY
CONNECTION TYPE: UNTHREADED INTERNAL HOSE FIRST FLUID END CONNECTION
CONNECTION STYLE: SOCKET ALL ENDS
STYLE DESIGNATOR: MALE COUPLING HALF
FIRST END OUTSIDE DIAMETER HOSE ACCOMMODATED: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH4.750 INCHES NOMINAL IN
QUICK DISCONNECT METHODTWO LUG UNIVERSAL ALL ENDS
MATERIALALUMINUM ALLOY BODY
CONNECTION TYPEUNTHREADED INTERNAL HOSE FIRST FLUID END CONNECTION
SPECIAL FEATURESMOLDED GASKETS,SPIRAL GROOVED INSIDE,SECURING HOLE FOR 10 SCREW,FLG DRILLED FOR SAFETY LOCK 1-1/4IN. ID,2-5/32IN OD IN
CONNECTION STYLESOCKET ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
FIRST END OUTSIDE DIAMETER HOSE ACCOMMODATED1.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
3033A233Interchangeable
interchangeable cross-reference
interchangeable
46691Interchangeable
interchangeable cross-reference
interchangeable
550 21Interchangeable
interchangeable cross-reference
interchangeable
60-321Interchangeable
interchangeable cross-reference
interchangeable
478-2Interchangeable
interchangeable cross-reference
interchangeable
R2325A-21Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CQ-3A?
CQ-3A is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace CQ-3A?
There are 14 known substitutes for CQ-3A: 3033A233, 46691, 550 21 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CQ-3A?
CQ-3A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-217-9987. This indicates validated use in U.S. government and defense supply chains.
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