PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56-3-4SFTCoupling Half,quick Disconnect

Dixon Valve & Coupling Company, Llc · NSN 4730-00-241-8311 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-241-8311 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-241-8311. Primary manufacturer part number: 56-3-4SFT.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION
  • Leg Length: 0.438 INCHES NOMINAL IN
  • Style Designator: MALE COUPLING HALF
  • Thread Class: 3B ALL ENDS
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
  • Connection Style: BOSS GASKET SEAL ALL ENDS
Applications
  • Applications requiring Aluminum Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-241-8311, 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 Dixon Valve & Coupling Company, Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN4730-00-241-8311
Primary Part Number56-3-4SFT
Item NameCoupling Half,quick Disconnect
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDixon Valve & Coupling Company, Llc
StatusACTIVE
Connection TypeTHREADED INTERNAL BOSS FIRST FLUID END CONNECTION
Leg Length0.438 INCHES NOMINAL IN
Style DesignatorMALE COUPLING HALF
Thread Class3B ALL ENDS
Nominal Thread Size0.750 INCHES ALL ENDS IN
Thread Series DesignatorUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
Connection StyleBOSS GASKET SEAL ALL ENDS
Quick Disconnect MethodSPRING PUSH-PULL ALL ENDS
Connection TypeINTERNAL QUICK DISCONNECT ALL ENDS
MaterialALUMINUM ALLOY BODY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5980-00-148-8172MV5353 INTERCHANGEABLE
Light Emitting Diode
Quality Technologies Corp
5905-00-197-39472100-2867 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Keysight Technologies Inc
5945-00-231-1850SK5018 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
3120-00-343-237014U1479PCDD5353 INTERCHANGEABLE
Bearing,sleeve
Naval Ship Systems Command
9340-00-530-42475353 INTERCHANGEABLE
Window,observation
Clayton Manufacturing Company
4730-00-602-3707233410N INTERCHANGEABLE
Plug,pipe
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5340-00-759-27141725022-101 INTERCHANGEABLE
Clip,spring Tension
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5950-00-782-73145353 INTERCHANGEABLE
Transformer,power
William Spencer
5975-00-904-62225353 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5930-01-146-0395L507001891 INTERCHANGEABLE
Switch,code Indicating Wheel
Lockheed Martin Librascope Corporation
Cross-Reference Index
Part NumberManufacturer
56-3-4SFT PRIMARY Dixon Valve & Coupling Company, Llc (USA)
GP525BN1 Northrop Grumman Systems Corporation (USA)
REDAR-C11348-1 R.e. Darling Co., Inc. (USA)
5353 Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division (USA)
Related Parts
5980-00-148-8172INTERCHANGEABLE
LIGHT EMITTING DIODE
MV5353
5905-00-197-3947INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
2100-2867
5945-00-231-1850INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
SK5018
3120-00-343-2370INTERCHANGEABLE
BEARING,SLEEVE
14U1479PCDD5353
9340-00-530-4247INTERCHANGEABLE
WINDOW,OBSERVATION
5353
4730-00-602-3707INTERCHANGEABLE
PLUG,PIPE
233410N
5340-00-759-2714INTERCHANGEABLE
CLIP,SPRING TENSION
1725022-101
5950-00-782-7314INTERCHANGEABLE
TRANSFORMER,POWER
5353
5975-00-904-6222INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5353
5930-01-146-0395INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
L507001891
4320-01-426-7437INTERCHANGEABLE
PUMP UNIT,AXIAL PISTONS
T991(LN)
5975-01-648-2475INTERCHANGEABLE
CONDUIT ASSEMBLY,METAL,FLEXIBLE
5353

Frequently Asked Questions

What is NSN 4730-00-241-8311?

NSN 4730-00-241-8311 is a Coupling Half,quick Disconnect, manufactured by Dixon Valve & Coupling Company, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-241-8311?

NSN 4730-00-241-8311 has 4 cross-referenced part numbers: 56-3-4SFT (Dixon Valve & Coupling Company, Llc), GP525BN1 (Northrop Grumman Systems Corporation), REDAR-C11348-1 (R.e. Darling Co., Inc.), 5353 (Parker-Hannifin Corporation Dba Pneutronics Div Quick Coupler Division).

What NSN replaces 4730-00-241-8311?

There are 12 known substitutes for 4730-00-241-8311: 5980-00-148-8172, 5905-00-197-3947, 5945-00-231-1850 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56-3-4SFT?

Key specifications for 56-3-4SFT: Connection Type: THREADED INTERNAL BOSS FIRST FLUID END CONNECTION; Leg Length: 0.438 INCHES NOMINAL IN; Overall Length: 1.375 INCHES NOMINAL IN; Style Designator: MALE COUPLING HALF. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com