PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILC3486Coupling Half,quick Disconnect

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-289-4245 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-289-4245 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-289-4245. Primary manufacturer part number: MILC3486.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Connection Style: PLAIN ALL ENDS
  • Nominal Thread Size: 0.375 INCHES ALL ENDS IN
  • Leg Length: 0.641 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
  • Quick Disconnect Nominal Size: 0.750 INCHES ALL ENDS IN
  • Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS
  • Material: COPPER ALLOY AND COPPER BODY
  • Thread Series Designator: NPT ALL ENDS
Applications
  • Applications requiring Copper Alloy and Copper Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-289-4245, 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 2 commercial cross-references from 2 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
NSN4730-00-289-4245
Primary Part NumberMILC3486
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
StatusACTIVE
Connection StylePLAIN ALL ENDS
Nominal Thread Size0.375 INCHES ALL ENDS IN
Leg Length0.641 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
Quick Disconnect Nominal Size0.750 INCHES ALL ENDS IN
Connection TypeINTERNAL QUICK DISCONNECT ALL ENDS
MaterialCOPPER ALLOY AND COPPER BODY
Thread Series DesignatorNPT ALL ENDS
Connection TypeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
Quick Disconnect MethodTWIST-LOCK ALL ENDS
Style DesignatorMALE COUPLING HALF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-084-2707431-2 INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
4730-00-277-5675 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-277-5676 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-277-5677 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-277-5681 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-277-5682 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-277-6159 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-288-8802 INTERCHANGEABLE
Wye,quick Disconnect
4730-00-289-4240 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-289-4242 INTERCHANGEABLE
Coupling Half,quick Disconnect
Cross-Reference Index
Part NumberManufacturer
MILC3486 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1F Bowes Mfg Inc (USA)
Related Parts
6625-00-084-2707INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
431-2
4730-00-277-5675INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-277-5676INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-277-5677INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-277-5681INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-277-5682INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-277-6159INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-288-8802INTERCHANGEABLE
WYE,QUICK DISCONNECT
4730-00-289-4240INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-289-4242INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-289-4247INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
5990-00-636-4108INTERCHANGEABLE
SYNCHRO,RECEIVER

Frequently Asked Questions

What is NSN 4730-00-289-4245?

NSN 4730-00-289-4245 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: active.

What are the part numbers for NSN 4730-00-289-4245?

NSN 4730-00-289-4245 has 2 cross-referenced part numbers: MILC3486 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1F (Bowes Mfg Inc).

What NSN replaces 4730-00-289-4245?

There are 12 known substitutes for 4730-00-289-4245: 6625-00-084-2707, 4730-00-277-5675, 4730-00-277-5676 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILC3486?

Key specifications for MILC3486: Connection Style: PLAIN ALL ENDS; Special Features: AS MODIFIED BY LG O/A,PIPE SIZE AND DISTANCE ACROSS FLATS; Nominal Thread Size: 0.375 INCHES ALL ENDS IN; Leg Length: 0.641 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN. 12 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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