PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5591K14Coupling Half,quick Disconnect

Mcmaster-Carr Supply Co · NSN 4730-00-360-0589 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-360-0589 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-360-0589. Primary manufacturer part number: 5591K14.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Thread Series Designator: NPT ALL ENDS
  • Leg Length: 0.891 INCHES MINIMUM IN
  • Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
  • Nominal Thread Size: 1.500 INCHES ALL ENDS IN
  • Connection Type: EXTERNAL QUICK DISCONNECT ALL ENDS
  • Criticality Code Justification: FEAT
  • Style Designator: MALE COUPLING HALF
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-360-0589, 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 Mcmaster-Carr Supply Co. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-360-0589
Primary Part Number5591K14
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMcmaster-Carr Supply Co
StatusCANCELLED
Thread Series DesignatorNPT ALL ENDS
Leg Length0.891 INCHES MINIMUM IN
Connection TypeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
Nominal Thread Size1.500 INCHES ALL ENDS IN
Connection TypeEXTERNAL QUICK DISCONNECT ALL ENDS
Criticality Code JustificationFEAT
Style DesignatorMALE COUPLING HALF
Surface TreatmentANODIZE BODY
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
Quick Disconnect Nominal Size1.703 INCHES ALL ENDS IN
MaterialALUMINUM ALLOY BODY
Quick Disconnect MethodCAM-LOCKING ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5950-00-137-8073111-046-0006 INTERCHANGEABLE
Coil,radio Frequency
Northrop Grumman Systems Corporation
4730-00-289-5368 INTERCHANGEABLE
Coupling Half,quick Disconnect
2910-00-377-5548PF906 INTERCHANGEABLE
Filter Element,fluid
Baldwin Filters
1650-00-397-558710278 INTERCHANGEABLE
Rod,selector Valve,aircraft
Moog Military Aircraft Llc
6145-00-401-21066014C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
6115-00-596-527110-278 INTERCHANGEABLE
Housing,generator
Georator Llc
5360-00-830-79425864 INTERCHANGEABLE
Spring,helical,compression
Goodrich Aerospace Canada Ltd
4730-00-840-0797 INTERCHANGEABLE
Coupling Half,quick Disconnect
5960-00-842-6660 INTERCHANGEABLE
Electron Tube
5935-00-988-1604712220-12 INTERCHANGEABLE
Connector,receptacle,electrical
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
5591K14 Mcmaster-Carr Supply Co (USA)
5864 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
MS27022-9 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27022-9 Dover Resources Inc Dba Opw Engineered Systems (USA)
A-A-59326/3A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59326III15 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
633FU1 1-2AL Opw Fueling Components Inc. Div Opw Fueling Components (USA)
A-A-59326/3 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MS27022-9 Opw Fueling Components Inc. Div Opw Fueling Components (USA)
AA59326/3-5-A Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
6-1-746-6-5A Eidal International Corporation (USA)
A-A-59326 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MIL-C-27487 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
150-F-AL Dvcc, Llc (USA)
10278 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
67214 Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global (USA)
Related Parts
5950-00-137-8073INTERCHANGEABLE
COIL,RADIO FREQUENCY
111-046-0006
4730-00-289-5368INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
2910-00-377-5548INTERCHANGEABLE
FILTER ELEMENT,FLUID
PF906
1650-00-397-5587INTERCHANGEABLE
ROD,SELECTOR VALVE,AIRCRAFT
10278
6145-00-401-2106INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
6014C
6115-00-596-5271INTERCHANGEABLE
HOUSING,GENERATOR
10-278
5360-00-830-7942INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5864
4730-00-840-0797INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
5960-00-842-6660INTERCHANGEABLE
ELECTRON TUBE
5935-00-988-1604INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
712220-12
5365-01-011-1458INTERCHANGEABLE
SPACER,SLEEVE
10278
2520-01-019-2071INTERCHANGEABLE
TRANSMISSION,HYDRAULIC,VEHICULAR
00411

Frequently Asked Questions

What is NSN 4730-00-360-0589?

NSN 4730-00-360-0589 is a Coupling Half,quick Disconnect, manufactured by Mcmaster-Carr Supply Co, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-360-0589?

NSN 4730-00-360-0589 has 16 cross-referenced part numbers: 5591K14 (Mcmaster-Carr Supply Co), 5864 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), MS27022-9 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS27022-9 (Dover Resources Inc Dba Opw Engineered Systems), A-A-59326/3A (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 11 more.

What NSN replaces 4730-00-360-0589?

There are 12 known substitutes for 4730-00-360-0589: 5950-00-137-8073, 4730-00-289-5368, 2910-00-377-5548 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5591K14?

Key specifications for 5591K14: Thread Series Designator: NPT ALL ENDS; Overall Length: 2.188 INCHES MINIMUM AND 3.180 INCHES MAXIMUM IN; Leg Length: 0.891 INCHES MINIMUM IN; Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-360-0589 still in active supply?

NSN 4730-00-360-0589 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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