PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA59326I27Coupling Half,quick Disconnect

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 4730-01-021-6346 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-021-6346 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-021-6346. Primary manufacturer part number: AA59326I27.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS
  • Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE BODY
  • Material: COPPER ALLOY BODY
  • Style Designator: MALE COUPLING HALF
  • Nominal Thread Size: 2.500 INCHES ALL ENDS IN
  • Quick Disconnect Method: CAM-LOCKING ALL ENDS
  • Connection Style: PLAIN ALL ENDS
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-021-6346, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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
NSN4730-01-021-6346
Primary Part NumberAA59326I27
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
Connection TypeEXTERNAL QUICK DISCONNECT ALL ENDS
Material Document and ClassificationQQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE BODY
MaterialCOPPER ALLOY BODY
Style DesignatorMALE COUPLING HALF
Nominal Thread Size2.500 INCHES ALL ENDS IN
Quick Disconnect MethodCAM-LOCKING ALL ENDS
Connection StylePLAIN ALL ENDS
Surface TreatmentCOPPER ALLOY BODY
Leg Length0.750 INCHES MINIMUM IN
Thread Series DesignatorNPT ALL ENDS
Quick Disconnect Nominal Size2.547 INCHES ALL ENDS IN
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
AA59326I27 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59326/1-7-B Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MS27020-14 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
A-A-59326/1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59326/1A-7-B Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
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
4730-01-073-5852INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-01-135-5587INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT

Frequently Asked Questions

What is NSN 4730-01-021-6346?

NSN 4730-01-021-6346 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 4730-01-021-6346?

NSN 4730-01-021-6346 has 5 cross-referenced part numbers: AA59326I27 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA59326/1-7-B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MS27020-14 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), A-A-59326/1 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA59326/1A-7-B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).

What NSN replaces 4730-01-021-6346?

There are 12 known substitutes for 4730-01-021-6346: 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 AA59326I27?

Key specifications for AA59326I27: Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS; Material Document and Classification: QQ-C-390 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE BODY; Material: COPPER ALLOY BODY; Style Designator: MALE COUPLING HALF. 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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