PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59326/1Coupling Half,quick Disconnect

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 4730-01-073-5852 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-073-5852 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-073-5852. Primary manufacturer part number: A-A-59326/1.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Thread Series Designator: NPT ALL ENDS
  • Style Designator: MALE COUPLING HALF
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
  • Surface Treatment Document and Classification: MIL-A-8625,TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
  • Material: ALUMINUM ALLOY BODY
  • Material Document and Classification: QQ-A-601,T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-601,T5 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Surface Treatment: ANODIZE BODY
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-073-5852, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-073-5852
Primary Part NumberA-A-59326/1
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
Thread Series DesignatorNPT ALL ENDS
Style DesignatorMALE COUPLING HALF
Nominal Thread Size1.250 INCHES ALL ENDS IN
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY
MaterialALUMINUM ALLOY BODY
Material Document and ClassificationQQ-A-601,T6 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-A-601,T5 FED SPEC SINGLE MATERIAL RESPONSE BODY
Surface TreatmentANODIZE BODY
Connection TypeEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
Connection StylePLAIN ALL ENDS
Leg Length1.562 INCHES NOMINAL IN
Specification/standard Data58536-A-A-59326/1 MANUFACTURERS SPECIFICATION CONTROL
Quick Disconnect MethodCAM-LOCKING ALL ENDS
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-079-1362 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-079-1364 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-141-3195 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-516-4450 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-517-6827 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-840-0796 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-948-1719 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-007-5981 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-020-4762 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-01-020-7204 INTERCHANGEABLE
Coupling Half,quick Disconnect
Cross-Reference Index
Part NumberManufacturer
A-A-59326/1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59326/1-4-A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59326/1-4-A Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27020-7 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-079-1362INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-079-1364INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-141-3195INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-516-4450INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-517-6827INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-840-0796INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-948-1719INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-007-5981INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-020-4762INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-020-7204INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-021-6346INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-126-3825INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT

Frequently Asked Questions

What is NSN 4730-01-073-5852?

NSN 4730-01-073-5852 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 4730-01-073-5852?

NSN 4730-01-073-5852 has 4 cross-referenced part numbers: A-A-59326/1 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA59326/1-4-A (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59326/1-4-A (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS27020-7 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-073-5852?

There are 12 known substitutes for 4730-01-073-5852: 4730-00-079-1362, 4730-00-079-1364, 4730-00-141-3195 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59326/1?

Key specifications for A-A-59326/1: Thread Series Designator: NPT ALL ENDS; Style Designator: MALE COUPLING HALF; Nominal Thread Size: 1.250 INCHES ALL ENDS IN; Surface Treatment Document and Classification: MIL-A-8625,TYPE 2 CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE BODY. 13 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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