PartsTable
Technical Data Sheet

A-A-59326/20 — COUPLING HALF,QUICK DISCONNECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

A-A-59326/20: COUPLING HALF,QUICK DISCONNECT.

The COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, leg_length: 4.250 INCHES MINIMUM AND 6.000 INCHES MAXIMUM THIRD END IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, nominal_thickness: 0.625 INCHES ALL ENDS IN, bolt_hole_quantity: 8 ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-138-1526, 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
A-A-59326/20
NSN: 4730-01-138-1526
NIINs: 011381526, 012353264
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
leg_length4.250 INCHES MINIMUM AND 6.000 INCHES MAXIMUM THIRD END IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
nominal_thickness0.625 INCHES ALL ENDS IN
bolt_hole_quantity8 ALL ENDS
flange_face_designPLAIN ALL ENDS
nominal_outside_diameter6.625 INCHES ALL ENDS IN
bolt_hole_nominal_diameter0.875 INCHES ALL ENDS IN
specification/standard_data96906-MS39336 GOVERNMENT STANDARD
bolt_circle_nominal_diameter4.000 INCHES ALL ENDS IN
NSN4730-01-138-1526
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A-A-59326/20 · 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
•
NOMINAL LENGTH: 4.812 INCHES ALL ENDS IN
•
SPECIFICATION/STANDARD DATA: 96906-MS39352 GOVERNMENT STANDARD AND 81349-MIL-C-27487 GOVERNMENT SPECIFICATION
•
NONDEFINITIVE SPEC/STD DATA: 2 CLASS AND 21 TYPE
•
NOMINAL COUPLING SIZE ACCOMMODATED: 3.000 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
NOMINAL LENGTH4.812 INCHES ALL ENDS IN
SPECIFICATION/STANDARD DATA96906-MS39352 GOVERNMENT STANDARD AND 81349-MIL-C-27487 GOVERNMENT SPECIFICATION
NONDEFINITIVE SPEC/STD DATA2 CLASS AND 21 TYPE
SPECIAL FEATURESOVERALL LENGTH: 4.812 IN. MIN.; QUICK DISCONNECT METHOD: CAM-LOCKING ALL ENDS; QUICK DISCONNECT NOMINAL SIZE: 4.000 IN. FIRST QUICK DISCONNECT END IN
NOMINAL COUPLING SIZE ACCOMMODATED3.000 INCHES SECOND END IN
NOMINAL COUPLING SIZE ACCOMMODATED4.000 INCHES FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 5
MIL-C-27487Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-A-59326Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS39352-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
AA59326/20-9-BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AA59326XXI29Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A-A-59326/20?
A-A-59326/20 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace A-A-59326/20?
There are 5 known substitutes for A-A-59326/20: MIL-C-27487, A-A-59326, MS39352-18 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-59326/20?
A-A-59326/20 is cataloged in the U.S. Government catalog under NSN 4730-01-138-1526. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.