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PartsTable / COMPONENT / A-A-50431A
A-A-50431A ✓ 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 WYE,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: UNABLE TO DECODE, flow_angle: 45.0 DEGREES, leg_length: UNABLE TO DECODE, connection_type: UNABLE TO DECODE, special_features: 1ST LEG NOM.SIZE 0.750,SECOND LEG NOM.SIZE 0.500,THIRD LEG NOM.SIZE 0.500, style_designator: WYE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-8802, 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-50431A
NSN: 4730-00-288-8802
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialUNABLE TO DECODE
flow_angle45.0 DEGREES
leg_lengthUNABLE TO DECODE
connection_typeUNABLE TO DECODE
special_features1ST LEG NOM.SIZE 0.750,SECOND LEG NOM.SIZE 0.500,THIRD LEG NOM.SIZE 0.500
style_designatorWYE
quick_disconnect_methodUNABLE TO DECODE
nondefinitive_spec/std_dataYM CLASS
NSN4730-00-288-8802
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A-A-50431A · 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
•
NONDEFINITIVE SPEC/STD DATA: YM CLASS
•
LEG LENGTH: UNABLE TO DECODE
•
STYLE DESIGNATOR: WYE
•
MATERIAL: UNABLE TO DECODE
•
QUICK DISCONNECT METHOD: UNABLE TO DECODE
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATAYM CLASS
LEG LENGTHUNABLE TO DECODE
LEG LENGTHUNABLE TO DECODE
SPECIAL FEATURES1ST LEG NOM.SIZE 0.750,SECOND LEG NOM.SIZE 0.500,THIRD LEG NOM.SIZE 0.500
LEG LENGTHUNABLE TO DECODE
STYLE DESIGNATORWYE
MATERIALUNABLE TO DECODE
QUICK DISCONNECT METHODUNABLE TO DECODE
CONNECTION TYPEUNABLE TO DECODE
FLOW ANGLE45.0 DEGREES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
MILC3486Interchangeable
interchangeable cross-reference
interchangeable
AA50431Interchangeable
interchangeable cross-reference
interchangeable
AA50431-OMBZE10Interchangeable
interchangeable cross-reference
interchangeable
AA50431, CLASS OF, SIZE 1/2 INCHInterchangeable
interchangeable cross-reference
interchangeable
AA50431-OFBZC10Interchangeable
interchangeable cross-reference
interchangeable
AA50431-HFBZB00Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-50431A?
A-A-50431A is a WYE,QUICK DISCONNECT.
What parts can replace A-A-50431A?
There are 12 known substitutes for A-A-50431A: MILC3486, AA50431, AA50431-OMBZE10 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-50431A?
A-A-50431A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-8802. 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