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PartsTable / COMPONENT / AA59439-09-12-00B
AA59439-09-12-00B ✓ 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 phase: SINGLE, diameter: 0.186 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN, material: STEEL OVERALL, wheel_style: CONE, CURVED SIDES W/ FLAT BASE, power_source: EXTERNAL, usage_design: METALWORKING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-050-4033, 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
AA59439-09-12-00B
NSN: 4730-01-050-4033
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
phaseSINGLE
diameter0.186 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
materialSTEEL OVERALL
wheel_styleCONE, CURVED SIDES W/ FLAT BASE
power_sourceEXTERNAL
usage_designMETALWORKING
bore_diameter0.1875 INCHES NOMINAL IN
overall_width2.000 INCHES NOMINAL IN
terminal_typeTAB, SOLDER LUG
alignment_typeRIGID
inclosure_typeENCASED
overall_height0.1950 INCHES NOMINAL IN
NSN4730-01-050-4033
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA59439-09-12-00B · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
GB34Interchangeable
interchangeable cross-reference
interchangeable
GB34XInterchangeable
interchangeable cross-reference
interchangeable
205627-6Interchangeable
interchangeable cross-reference
interchangeable
B52Interchangeable
interchangeable cross-reference
interchangeable
B107.16Interchangeable
interchangeable cross-reference
interchangeable
2073113Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59439-09-12-00B?
AA59439-09-12-00B is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace AA59439-09-12-00B?
There are 24 known substitutes for AA59439-09-12-00B: GB34, GB34X, 205627-6 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA59439-09-12-00B?
AA59439-09-12-00B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-050-4033. 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