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Technical Data Sheet
PartsTable / COMPONENT / H52S3Q
H52S3Q ✓ 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: COPPER ALLOY BODY, leg_length: 1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN, overall_length: 2.188 INCHES MINIMUM AND 2.781 INCHES MAXIMUM IN, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS, connection_style: BARBED OR SERRATED END ALL ENDS, 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 4730-00-494-3272, 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
H52S3Q
NSN: 4730-00-494-3272
FSC: 4730
CAGE: 14233 — HOFMANN ENGINEERING CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
leg_length1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
overall_length2.188 INCHES MINIMUM AND 2.781 INCHES MAXIMUM IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
connection_styleBARBED OR SERRATED END ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSELF-SEALING
end_item_identification43N AIRCRAFT, HORNET F/A-18
quick_disconnect_methodSPRING PUSH-PULL ALL ENDS
nondefinitive_spec/std_dataA CLASS AND 3 STYLE AND 1 TYPE
specification/standard_data58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
quick_disconnect_nominal_size0.453 INCHES ALL ENDS IN
NSN4730-00-494-3272
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: H52S3Q · 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 NOMINAL SIZE: 0.453 INCHES ALL ENDS IN
•
CONNECTION STYLE: BARBED OR SERRATED END ALL ENDS
•
SPECIFICATION/STANDARD DATA: 58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 3 STYLE AND 1 TYPE
•
QUICK DISCONNECT METHOD: SPRING PUSH-PULL ALL ENDS
•
MATERIAL: COPPER ALLOY BODY
TECHNICAL CHARACTERISTICS (FLIS)
QUICK DISCONNECT NOMINAL SIZE0.453 INCHES ALL ENDS IN
CONNECTION STYLEBARBED OR SERRATED END ALL ENDS
SPECIFICATION/STANDARD DATA58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
END ITEM IDENTIFICATION43N AIRCRAFT, HORNET F/A-18
STYLE DESIGNATORMALE COUPLING HALF
NONDEFINITIVE SPEC/STD DATAA CLASS AND 3 STYLE AND 1 TYPE
QUICK DISCONNECT METHODSPRING PUSH-PULL ALL ENDS
MATERIALCOPPER ALLOY BODY
FEATURES PROVIDEDSELF-SEALING
LEG LENGTH1.000 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
C25A10Interchangeable
interchangeable cross-reference
interchangeable
B305B1-1/4INInterchangeable
interchangeable cross-reference
interchangeable
103-1-1-4Interchangeable
interchangeable cross-reference
interchangeable
3700Interchangeable
Same NIIN cross-reference
interchangeable
B30-5BInterchangeable
Same NIIN cross-reference
interchangeable
3703GInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H52S3Q?
H52S3Q is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace H52S3Q?
There are 12 known substitutes for H52S3Q: C25A10, B305B1-1/4IN, 103-1-1-4 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H52S3Q?
H52S3Q is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-494-3272. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026