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Technical Data Sheet
PartsTable / COMPONENT / AA59439-011-12-00-B
AA59439-011-12-00-B ✓ 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, overall_length: 2.312 INCHES NOMINAL IN, connection_type: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END, connection_style: BARBED OR SERRATED END ALL ENDS, style_designator: MALE COUPLING HALF, quick_disconnect_method: PUSH-PULL ALL ENDS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-224-7652, 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
AA59439-011-12-00-B
NSN: 4730-00-224-7652
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
overall_length2.312 INCHES NOMINAL IN
connection_typeEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
connection_styleBARBED OR SERRATED END ALL ENDS
style_designatorMALE COUPLING HALF
quick_disconnect_methodPUSH-PULL ALL ENDS
nondefinitive_spec/std_dataA CLASS AND 2 TYPE AND 3 STYLE
specification/standard_data58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
nominal_inside_diameter_hose_accommodated0.375 INCHES ALL ENDS IN
NSN4730-00-224-7652
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA59439-011-12-00-B · 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 TYPE: EXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
•
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 2 TYPE AND 3 STYLE
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
MATERIAL: COPPER ALLOY BODY
•
SPECIFICATION/STANDARD DATA: 58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH2.312 INCHES NOMINAL IN
CONNECTION TYPEEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
NONDEFINITIVE SPEC/STD DATAA CLASS AND 2 TYPE AND 3 STYLE
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.375 INCHES ALL ENDS IN
MATERIALCOPPER ALLOY BODY
SPECIFICATION/STANDARD DATA58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
STYLE DESIGNATORMALE COUPLING HALF
CONNECTION STYLEBARBED OR SERRATED END ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
4DF4Interchangeable
interchangeable cross-reference
interchangeable
B37-238Interchangeable
interchangeable cross-reference
interchangeable
M4109-06-16-00-BInterchangeable
interchangeable cross-reference
interchangeable
14-3Interchangeable
interchangeable cross-reference
interchangeable
AA59439-009-12-00-CInterchangeable
interchangeable cross-reference
interchangeable
MIL-C-4109EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59439-011-12-00-B?
AA59439-011-12-00-B is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace AA59439-011-12-00-B?
There are 17 known substitutes for AA59439-011-12-00-B: 4DF4, B37-238, M4109-06-16-00-B and 14 more. Substitute compatibility should be verified for your specific system.
Is AA59439-011-12-00-B still available?
AA59439-011-12-00-B is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026