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AA59326/5A-1-A-1 — Technical Data Sheet

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— · 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, leg_length: 1.046 INCHES NOMINAL IN, overall_length: 1.562 INCHES MINIMUM AND 2.172 INCHES MAXIMUM IN, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS, furnished_items: PREFORMED PACKING, connection_style: PLAIN ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-01-143-1421, 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
AA59326/5A-1-A-1
NSN: 4730-01-143-1421
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length1.046 INCHES NOMINAL IN
overall_length1.562 INCHES MINIMUM AND 2.172 INCHES MAXIMUM IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
furnished_itemsPREFORMED PACKING
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size0.500 INCHES ALL ENDS IN
quick_disconnect_methodCAM-LOCKING ALL ENDS
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_dataV TYPE AND 1/2 IN.CAM SIZE IN
specification/standard_data81349-MIL-C-27487E GOVERNMENT SPECIFICATION
NSN4730-01-143-1421
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA59326/5A-1-A-1 · 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: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
•
SPECIFICATION/STANDARD DATA: 81349-MIL-C-27487E GOVERNMENT SPECIFICATION
•
MATERIAL: ALUMINUM ALLOY BODY
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
CONNECTION STYLE: PLAIN ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-601/T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-601/T5 FED SPEC SINGLE MATERIAL RESPONSE BODY
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
SPECIFICATION/STANDARD DATA81349-MIL-C-27487E GOVERNMENT SPECIFICATION
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
MATERIALALUMINUM ALLOY BODY
THREAD SERIES DESIGNATORNPT ALL ENDS
CONNECTION STYLEPLAIN ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-601/T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-601/T5 FED SPEC SINGLE MATERIAL RESPONSE BODY
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
NONDEFINITIVE SPEC/STD DATAV TYPE AND 1/2 IN.CAM SIZE IN
LEG LENGTH1.046 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
AA59326/5-2-B-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
633DInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
633D-.75BRInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
633D-.75ALInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
633D3-4IN ALInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
75-D-ALInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59326/5A-1-A-1?
AA59326/5A-1-A-1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace AA59326/5A-1-A-1?
There are 13 known substitutes for AA59326/5A-1-A-1: AA59326/5-2-B-1, 633D, 633D-.75BR and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA59326/5A-1-A-1?
AA59326/5A-1-A-1 is cataloged in the Federal Logistics Information System under NSN 4730-01-143-1421. This indicates validated use in U.S. government and defense supply chains.
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Last verified: September 2026