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AA59326/5-2-B-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: COPPER ALLOY BODY, leg_length: 0.562 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN, overall_length: 2.125 INCHES NOMINAL IN, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF, nominal_thread_size: 0.750 INCHES ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-079-2451, 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
AA59326/5-2-B-1
NSN: 4730-00-079-2451
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
leg_length0.562 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
overall_length2.125 INCHES NOMINAL IN
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size0.750 INCHES ALL ENDS IN
quick_disconnect_methodCAM-LOCKING ALL ENDS
thread_series_designatorNPT ALL ENDS
specification/standard_data96906-MS27024 GOVERNMENT STANDARD
quick_disconnect_nominal_size1.250 INCHES ALL ENDS IN
material_document_and_classificationQQ-C-390 ALLOY 865 FED SPEC ALL MATERIAL RESPONSES OR QQ-B-626 FED SPEC ALL MATERIAL RESPONSES BODY
NSN4730-00-079-2451
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA59326/5-2-B-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 STYLE: PLAIN ALL ENDS
•
QUICK DISCONNECT METHOD: CAM-LOCKING ALL ENDS
•
QUICK DISCONNECT NOMINAL SIZE: 1.250 INCHES ALL ENDS IN
•
MATERIAL: COPPER ALLOY BODY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390 ALLOY 865 FED SPEC ALL MATERIAL RESPONSES OR QQ-B-626 FED SPEC ALL MATERIAL RESPONSES BODY
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
LEG LENGTH: 0.562 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION STYLEPLAIN ALL ENDS
QUICK DISCONNECT METHODCAM-LOCKING ALL ENDS
QUICK DISCONNECT NOMINAL SIZE1.250 INCHES ALL ENDS IN
MATERIALCOPPER ALLOY BODY
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390 ALLOY 865 FED SPEC ALL MATERIAL RESPONSES OR QQ-B-626 FED SPEC ALL MATERIAL RESPONSES BODY
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
LEG LENGTH0.562 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
THREAD SERIES DESIGNATORNPT ALL ENDS
SPECIFICATION/STANDARD DATA96906-MS27024 GOVERNMENT STANDARD
STYLE DESIGNATORMALE COUPLING HALF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
633D-4BRInterchangeable
interchangeable cross-reference
interchangeable
633-D-4IN-BRInterchangeable
interchangeable cross-reference
interchangeable
633-D-1/2IN-BRInterchangeable
interchangeable cross-reference
interchangeable
633D-1/2BRInterchangeable
interchangeable cross-reference
interchangeable
50-D-BRInterchangeable
interchangeable cross-reference
interchangeable
AA59326/5A-1-A-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59326/5-2-B-1?
AA59326/5-2-B-1 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace AA59326/5-2-B-1?
There are 20 known substitutes for AA59326/5-2-B-1: 633D-4BR, 633-D-4IN-BR, 633-D-1/2IN-BR and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA59326/5-2-B-1?
AA59326/5-2-B-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-079-2451. 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: September 2026