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Technical Data Sheet
PartsTable / COMPONENT / AA59326/4-1-A
AA59326/4-1-A ✓ 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 AA59326/4-1-A is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-186-0816, 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
AA59326/4-1-A
NSN: 4730-01-186-0816
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberAA59326/4-1-A
NSN4730-01-186-0816
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA59326/4-1-A · 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
•
SURFACE TREATMENT: ANODIZE BODY
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TY2,CL1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
•
BOLT CIRCLE NOMINAL DIAMETER: 3.750 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-601,T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-601,T5 FED SPEC 2ND MATERIAL RESPONSE BODY
•
CONNECTION STYLE: PLAIN ALL ENDS
•
MATERIAL: ALUMINUM ALLOY BODY
•
CONNECTION TYPE: FLANGE FIRST FLUID END CONNECTION
•
QUICK DISCONNECT METHOD: CAM-LOCKING ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTANODIZE BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TY2,CL1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
BOLT CIRCLE NOMINAL DIAMETER3.750 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-601,T6 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-601,T5 FED SPEC 2ND MATERIAL RESPONSE BODY
CONNECTION STYLEPLAIN ALL ENDS
MATERIALALUMINUM ALLOY BODY
CONNECTION TYPEFLANGE FIRST FLUID END CONNECTION
QUICK DISCONNECT METHODCAM-LOCKING ALL ENDS
BASIC SHAPE STYLEROUND FIRST FLUID END CONNECTION
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
633LAT6INALInterchangeable
interchangeable cross-reference
interchangeable
AA59326/4-5-AInterchangeable
interchangeable cross-reference
interchangeable
MS27023-19Interchangeable
interchangeable cross-reference
interchangeable
AA59326-G-4Interchangeable
interchangeable cross-reference
interchangeable
A-A-59326-4Interchangeable
interchangeable cross-reference
interchangeable
MS27030-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59326/4-1-A?
AA59326/4-1-A is a AA59326/4-1-A.
What parts can replace AA59326/4-1-A?
There are 26 known substitutes for AA59326/4-1-A: 633LAT6INAL, AA59326/4-5-A, MS27023-19 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA59326/4-1-A?
AA59326/4-1-A is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-186-0816. 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