PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4050-4Coupling Half,quick Disconnect

Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division · NSN 4730-01-319-7804 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-319-7804 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-319-7804. Primary manufacturer part number: 4050-4.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Quick Disconnect Method: PUSH-PULL ALL ENDS
  • Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS
  • Quick Disconnect Nominal Size: 0.500 INCHES ALL ENDS IN
  • Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
  • Nominal Thread Size: 0.500 INCHES ALL ENDS IN
  • Style Designator: MALE COUPLING HALF
  • Connection Style: PLAIN ALL ENDS
Applications
  • Applications requiring Steel Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-01-319-7804, 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 Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-319-7804
Primary Part Number4050-4
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division
StatusACTIVE
Quick Disconnect MethodPUSH-PULL ALL ENDS
Connection TypeINTERNAL QUICK DISCONNECT ALL ENDS
Quick Disconnect Nominal Size0.500 INCHES ALL ENDS IN
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Nominal Thread Size0.500 INCHES ALL ENDS IN
Style DesignatorMALE COUPLING HALF
Connection StylePLAIN ALL ENDS
MaterialSTEEL BODY
Thread Series DesignatorNPTF ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5315-00-104-5197 INTERCHANGEABLE
Pin,groove
4730-00-289-0593 INTERCHANGEABLE
Plug,tube Repair
5950-00-755-01409177258 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Aviation and Missile Command
5825-00-876-444540504 INTERCHANGEABLE
Stop Assembly
L3harris Technologies, Inc. Div Space and Airborne Systems
3455-01-045-4016TABLE 21, D3/4IN INTERCHANGEABLE
Cutter,milling,end
The American Society of Mechanical Engineers
5120-01-074-810435413 INTERCHANGEABLE
Bit,screwdriver
Magna Div Vermont American Corp
6515-01-107-6954 INTERCHANGEABLE
Pin,bone Nail Guide
7920-01-116-410140-504 INTERCHANGEABLE
Brush,dusting,lens and Photograp
Edmund Optics, Inc
5330-01-178-953640518 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Mti Insulated Products Inc.
6240-01-329-8092912 INTERCHANGEABLE
Lamp,incandescent
Lamp Industry for Use with Industry Designations and Abbreviations for Lamps
Cross-Reference Index
Part NumberManufacturer
4050-4 Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
4050-4 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA)
503-02476 ITEM 18 Lake Shore Systems, Inc. (USA)
4050-4 Parker-Hannifin Corporation Div Quick Coupling Division (USA)
4050-4 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division (USA)
Related Parts
5315-00-104-5197INTERCHANGEABLE
PIN,GROOVE
4730-00-289-0593INTERCHANGEABLE
PLUG,TUBE REPAIR
5950-00-755-0140INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
9177258
5825-00-876-4445INTERCHANGEABLE
STOP ASSEMBLY
40504
3455-01-045-4016INTERCHANGEABLE
CUTTER,MILLING,END
TABLE 21, D3/4IN
5120-01-074-8104INTERCHANGEABLE
BIT,SCREWDRIVER
35413
6515-01-107-6954INTERCHANGEABLE
PIN,BONE NAIL GUIDE
7920-01-116-4101INTERCHANGEABLE
BRUSH,DUSTING,LENS AND PHOTOGRAP
40-504
5330-01-178-9536INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
40518
6240-01-329-8092INTERCHANGEABLE
LAMP,INCANDESCENT
912

Frequently Asked Questions

What is NSN 4730-01-319-7804?

NSN 4730-01-319-7804 is a Coupling Half,quick Disconnect, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-319-7804?

NSN 4730-01-319-7804 has 5 cross-referenced part numbers: 4050-4 (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division), 4050-4 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division), 503-02476 ITEM 18 (Lake Shore Systems, Inc.), 4050-4 (Parker-Hannifin Corporation Div Quick Coupling Division), 4050-4 (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupling Division).

What NSN replaces 4730-01-319-7804?

There are 10 known substitutes for 4730-01-319-7804: 5315-00-104-5197, 4730-00-289-0593, 5950-00-755-0140 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4050-4?

Key specifications for 4050-4: Quick Disconnect Method: PUSH-PULL ALL ENDS; Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS; Quick Disconnect Nominal Size: 0.500 INCHES ALL ENDS IN; Connection Type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION. 11 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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