PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA59326/8-3-A-1Coupling Half,quick Disconnect

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 4730-00-889-2378 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-889-2378 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-889-2378. Primary manufacturer part number: AA59326/8-3-A-1.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Material: ALUMINUM ALLOY BODY
  • Surface Treatment Document and Classification: MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
  • Material Document and Classification: QQ-A-601,T51 OR T6 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
  • Specification/standard Data: 96906-MS27027 GOVERNMENT STANDARD
  • Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
  • Style Designator: MALE COUPLING HALF
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-889-2378, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-889-2378
Primary Part NumberAA59326/8-3-A-1
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
MaterialALUMINUM ALLOY BODY
Surface Treatment Document and ClassificationMIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
Material Document and ClassificationQQ-A-601,T51 OR T6 FED SPEC SINGLE MATERIAL RESPONSE BODY
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
Specification/standard Data96906-MS27027 GOVERNMENT STANDARD
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
Style DesignatorMALE COUPLING HALF
Nondefinitive Spec/std Data1 CLASS
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Connection TypeFLANGE FIRST FLUID END CONNECTION
Quick Disconnect Nominal Size3.000 INCHES ALL ENDS IN
Connection StylePLAIN ALL ENDS
Bolt Hole Quantity8
Basic Shape StyleROUND FIRST FLUID END CONNECTION
Connection TypeINTERNAL QUICK DISCONNECT ALL ENDS
Quick Disconnect MethodCAM-LOCKING ALL ENDS
Features ProvidedSAFETY LOCKING FEATURE
Bolt Circle Nominal Diameter4.875 INCHES IN
Nominal Outside Diameter5.625 INCHES IN
Bolt Hole Nominal Diameter0.437 INCHES IN
Surface TreatmentANODIZE BODY
Nominal Thickness0.375 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-088-9166 INTERCHANGEABLE
Gasket
4730-00-840-5348 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-983-6789 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-186-0818 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-644-8092 INTERCHANGEABLE
Coupling Half,quick Disconnect
Cross-Reference Index
Part NumberManufacturer
AA59326/8-3-A-1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59326/8 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MS27027-15 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
A-A-59326 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
300-DL-AL Dvcc, Llc (USA)
Related Parts
5330-00-088-9166INTERCHANGEABLE
GASKET
4730-00-840-5348INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-983-6789INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-186-0818INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-644-8092INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT

Frequently Asked Questions

What is NSN 4730-00-889-2378?

NSN 4730-00-889-2378 is a Coupling Half,quick Disconnect, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-889-2378?

NSN 4730-00-889-2378 has 5 cross-referenced part numbers: AA59326/8-3-A-1 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59326/8 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MS27027-15 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), A-A-59326 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 300-DL-AL (Dvcc, Llc).

What NSN replaces 4730-00-889-2378?

There are 5 known substitutes for 4730-00-889-2378: 5330-00-088-9166, 4730-00-840-5348, 4730-00-983-6789 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA59326/8-3-A-1?

Key specifications for AA59326/8-3-A-1: Material: ALUMINUM ALLOY BODY; Surface Treatment Document and Classification: MIL-A-8625,TY 2,CL 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY; Material Document and Classification: QQ-A-601,T51 OR T6 FED SPEC SINGLE MATERIAL RESPONSE BODY; Operating Pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS. 23 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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