PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-4109Coupling Half,quick Disconnect

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-233-3434 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-233-3434 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-233-3434. Primary manufacturer part number: MIL-C-4109.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS
  • Style Designator: MALE COUPLING HALF
  • Connection Style: BEADED ALL ENDS
  • Material: STEEL BODY
  • Nominal Inside Diameter Hose Accommodated: 0.500 INCHES ALL ENDS IN
  • Nondefinitive Spec/std Data: 2 TYPE AND C CLASS AND 2 STYLE
  • Quick Disconnect Method: PUSH-PULL ALL ENDS
Applications
  • Applications requiring Steel Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-233-3434, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 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
NSN4730-01-233-3434
Primary Part NumberMIL-C-4109
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Connection TypeINTERNAL QUICK DISCONNECT ALL ENDS
Style DesignatorMALE COUPLING HALF
Connection StyleBEADED ALL ENDS
MaterialSTEEL BODY
Nominal Inside Diameter Hose Accommodated0.500 INCHES ALL ENDS IN
Nondefinitive Spec/std Data2 TYPE AND C CLASS AND 2 STYLE
Quick Disconnect MethodPUSH-PULL ALL ENDS
Specification/standard Data58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Connection TypeUNTHREADED EXTERNAL HOSE FIRST FLUID END CONNECTION
Leg Length1.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-065-4903 INTERCHANGEABLE
Handle,socket Wrench
3110-00-144-8488110381-3 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5930-00-258-5960B-5-4 INTERCHANGEABLE
Switch,pressure
Ellis & Watts International, Llc
3030-00-274-6079B54 INTERCHANGEABLE
Belt,v
Parker-Hannifin Corporation Dba Industrial Hose Product Division Div Hose Products Division
5977-00-669-9883101 INTERCHANGEABLE
Brush,electrical Contact
Busch Tractor Inc Dba Buschwackers
5940-00-706-93697069369 INTERCHANGEABLE
Terminal,lug
U S Army Tank Automotive Command Amsta-Im-Mm
5340-00-819-0546SSB-54 INTERCHANGEABLE
Plunger,quick Release
Hutchinson Aerospace & Industry, Inc. Dba Vlier Div Vlier
5120-00-833-2175B-54 INTERCHANGEABLE
Screwdriver,offset
Ngk Metals Corporation Dba N G K Berylco
3030-00-849-3881B54 INTERCHANGEABLE
Belt,v
Emerson Electric Co Browning Mfg Div
3110-01-068-2977 INTERCHANGEABLE
Bearing,ball,thrust
Cross-Reference Index
Part NumberManufacturer
MIL-C-4109 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
B-54 Hydraulics International, Inc. Dba Hydraulics International Inc (USA)
AA59439-014-16-00-C Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
M4109-14-16-00C Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A-A-59439 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59439-14-16-00C Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
5120-00-065-4903INTERCHANGEABLE
HANDLE,SOCKET WRENCH
3110-00-144-8488INTERCHANGEABLE
BEARING,BALL,ANNULAR
110381-3
5930-00-258-5960INTERCHANGEABLE
SWITCH,PRESSURE
B-5-4
3030-00-274-6079INTERCHANGEABLE
BELT,V
B54
5977-00-669-9883INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
101
5940-00-706-9369INTERCHANGEABLE
TERMINAL,LUG
7069369
5340-00-819-0546INTERCHANGEABLE
PLUNGER,QUICK RELEASE
SSB-54
5120-00-833-2175INTERCHANGEABLE
SCREWDRIVER,OFFSET
B-54
3030-00-849-3881INTERCHANGEABLE
BELT,V
B54
3110-01-068-2977INTERCHANGEABLE
BEARING,BALL,THRUST
3530-01-280-4270INTERCHANGEABLE
GUIDE,THREAD,SEWING MACHINE
B54
4140-01-333-7281INTERCHANGEABLE
FAN,CENTRIFUGAL
B-54

Frequently Asked Questions

What is NSN 4730-01-233-3434?

NSN 4730-01-233-3434 is a Coupling Half,quick Disconnect, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-233-3434?

NSN 4730-01-233-3434 has 6 cross-referenced part numbers: MIL-C-4109 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), B-54 (Hydraulics International, Inc. Dba Hydraulics International Inc), AA59439-014-16-00-C (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), M4109-14-16-00C (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A-A-59439 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 1 more.

What NSN replaces 4730-01-233-3434?

There are 12 known substitutes for 4730-01-233-3434: 5120-00-065-4903, 3110-00-144-8488, 5930-00-258-5960 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-C-4109?

Key specifications for MIL-C-4109: Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS; Style Designator: MALE COUPLING HALF; Connection Style: BEADED ALL ENDS; Material: STEEL BODY. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-233-3434 still in active supply?

NSN 4730-01-233-3434 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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