PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILC22263-1-016Coupling Assembly,tube,flexible

Middleton Enterprises, Inc Div Aero Tube & Connector Div. · NSN 4730-00-311-1154 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-311-1154 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-311-1154. Primary manufacturer part number: MILC22263-1-016.
Features
  • Coupling Assembly,tube,flexible — FSC 4730
  • 13 verified cross-references
  • Primary manufacturer: Middleton Enterprises, Inc Div Aero Tube & Connector Div.
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Coupling Assembly,tube,flexible, cataloged under National Stock Number 4730-00-311-1154, 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 Middleton Enterprises, Inc Div Aero Tube & Connector Div.. This item has 13 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameCoupling Assembly,tube,flexible
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersMiddleton Enterprises, Inc Div Aero Tube & Connector Div. (CAGE 14963); Northrop Grumman Systems Corporation (CAGE 26512); Transdigm Inc Div Adelwiggins Group (CAGE 79326); Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (CAGE 80378)
Technical Specifications
ParameterValue
NSN4730-00-311-1154
Primary Part NumberMILC22263-1-016
Item NameCoupling Assembly,tube,flexible
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMiddleton Enterprises, Inc Div Aero Tube & Connector Div.
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-303-6103 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-303-6104 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-303-6105 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-311-1153 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-311-1156AS5352-24D INTERCHANGEABLE
Coupling Assembly,tube,flexible
Sae International Dba Sae International
4730-00-315-6703 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-319-4286 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-326-5625 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-475-5808 INTERCHANGEABLE
Coupling Assembly,tube,flexible
4730-00-475-5809 INTERCHANGEABLE
Coupling Assembly,tube,flexible
Cross-Reference Index
Part NumberManufacturer
MILC22263-1-016 Middleton Enterprises, Inc Div Aero Tube & Connector Div. (USA)
GC550C16 Northrop Grumman Systems Corporation (USA)
LUW340-16 Middleton Enterprises, Inc Div Aero Tube & Connector Div. (USA)
3605-16D Transdigm Inc Div Adelwiggins Group (USA)
MILC22263-1-016 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
202-20518-16D Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division (USA)
M85061-16A Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3605-160 Safran Aerosystems Ex Safran Aerotechnics Plaisir (FRA)
12J36-16A Hydraflow (USA)
MILC22263-1-016 Transdigm Inc Div Adelwiggins Group (USA)
MIL-C-85061 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
LUW360-16 Middleton Enterprises, Inc Div Aero Tube & Connector Div. (USA)
MCF67353-100 Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
4730-00-303-6103INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-303-6104INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-303-6105INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-311-1153INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-311-1156INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
AS5352-24D
4730-00-315-6703INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-319-4286INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-326-5625INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-475-5808INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-475-5809INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-475-5811INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE
4730-00-628-4196INTERCHANGEABLE
COUPLING ASSEMBLY,TUBE,FLEXIBLE

Frequently Asked Questions

What is NSN 4730-00-311-1154?

NSN 4730-00-311-1154 is a Coupling Assembly,tube,flexible, manufactured by Middleton Enterprises, Inc Div Aero Tube & Connector Div., classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-311-1154?

NSN 4730-00-311-1154 has 13 cross-referenced part numbers: MILC22263-1-016 (Middleton Enterprises, Inc Div Aero Tube & Connector Div.), GC550C16 (Northrop Grumman Systems Corporation), LUW340-16 (Middleton Enterprises, Inc Div Aero Tube & Connector Div.), 3605-16D (Transdigm Inc Div Adelwiggins Group), MILC22263-1-016 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 8 more.

What NSN replaces 4730-00-311-1154?

There are 12 known substitutes for 4730-00-311-1154: 4730-00-303-6103, 4730-00-303-6104, 4730-00-303-6105 and 9 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-311-1154 still in active supply?

NSN 4730-00-311-1154 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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