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AA50431-OMBZE10 ✓ 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, leg_length: 0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN, overall_length: 1.875 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-5676, 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
AA50431-OMBZE10
NSN: 4730-00-277-5676
FSC: 4730
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialCOPPER ALLOY BODY
leg_length0.850 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
overall_length1.875 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size0.750 INCHES ALL ENDS IN
quick_disconnect_methodTWIST-LOCK ALL ENDS
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_dataOF CLASS
quick_disconnect_nominal_size0.750 INCHES ALL ENDS IN
material_document_and_classificationMIL-C-3486,TABLE 1 MIL SPEC SINGLE MATERIAL RESPONSE BODY
NSN4730-00-277-5676
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA50431-OMBZE10 · 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 ALL ENDS
•
MATERIAL: COPPER ALLOY BODY
•
QUICK DISCONNECT NOMINAL SIZE: 0.750 INCHES ALL ENDS IN
•
LEG LENGTH: 1.844 INCHES MINIMUM AND 1.969 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
QUICK DISCONNECT METHOD: SPRING PUSH-PULL ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH4.156 INCHES NOMINAL IN
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
CONNECTION TYPEUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
MATERIALCOPPER ALLOY BODY
QUICK DISCONNECT NOMINAL SIZE0.750 INCHES ALL ENDS IN
LEG LENGTH1.844 INCHES MINIMUM AND 1.969 INCHES MAXIMUM IN
STYLE DESIGNATORMALE COUPLING HALF
QUICK DISCONNECT METHODSPRING PUSH-PULL ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-3486,TABLE 1 MIL SPEC SINGLE MATERIAL RESPONSE BODY
NONDEFINITIVE SPEC/STD DATAHM CLASS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
MILC3486Interchangeable
interchangeable cross-reference
interchangeable
AA50431, CLASS OF, SIZE 1/2 INCHInterchangeable
interchangeable cross-reference
interchangeable
AA50431-OFBZC10Interchangeable
interchangeable cross-reference
interchangeable
A-A-50431Interchangeable
interchangeable cross-reference
interchangeable
AA50431-OMBZE10Interchangeable
interchangeable cross-reference
interchangeable
75-B-YM-IIInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA50431-OMBZE10?
AA50431-OMBZE10 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace AA50431-OMBZE10?
There are 11 known substitutes for AA50431-OMBZE10: MILC3486, AA50431, CLASS OF, SIZE 1/2 INCH, AA50431-OFBZC10 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA50431-OMBZE10?
AA50431-OMBZE10 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-277-5676. 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