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 4730-00-277-5682 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-277-5682 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-277-5682. Primary manufacturer part number: MILC3486.
Features
  • Coupling Half,quick Disconnect — FSC 4730
  • Material: COPPER ALLOY BODY
  • Style Designator: MALE COUPLING HALF
  • Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
  • Material Document and Classification: MIL-C-3486,TB 1 MIL SPEC SINGLE MATERIAL RESPONSE BODY TB
  • Leg Length: 0.875 INCHES NOMINAL IN
  • Connection Type: INTERNAL QUICK DISCONNECT ALL ENDS
  • Quick Disconnect Nominal Size: 1.312 INCHES ALL ENDS IN
Applications
  • Applications requiring Copper Alloy Body construction
General Description

The Coupling Half,quick Disconnect, cataloged under National Stock Number 4730-00-277-5682, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4730-00-277-5682
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
MaterialCOPPER ALLOY BODY
Style DesignatorMALE COUPLING HALF
Connection TypeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
Material Document and ClassificationMIL-C-3486,TB 1 MIL SPEC SINGLE MATERIAL RESPONSE BODY TB
Leg Length0.875 INCHES NOMINAL IN
Connection TypeINTERNAL QUICK DISCONNECT ALL ENDS
Quick Disconnect Nominal Size1.312 INCHES ALL ENDS IN
Quick Disconnect MethodTWIST-LOCK ALL ENDS
Connection StylePLAIN ALL ENDS
Nominal Thread Size1.250 INCHES ALL ENDS IN
Nondefinitive Spec/std DataOF CLASS
Thread Series DesignatorNPT ALL ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
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
4730-00-277-6159 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
4730-00-289-4245 INTERCHANGEABLE
Coupling Half,quick Disconnect
4730-00-289-4247 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
Related Parts
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
4730-00-277-6159INTERCHANGEABLE
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
4730-00-289-4245INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
4730-00-289-4247INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT

Frequently Asked Questions

What is NSN 4730-00-277-5682?

NSN 4730-00-277-5682 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 4730-00-277-5682?

NSN 4730-00-277-5682 has 1 cross-referenced part number: MILC3486 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-00-277-5682?

There are 10 known substitutes for 4730-00-277-5682: 4730-00-277-5675, 4730-00-277-5676, 4730-00-277-5677 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILC3486?

Key specifications for MILC3486: Overall Length: 2.250 INCHES NOMINAL IN; Material: COPPER ALLOY BODY; Style Designator: MALE COUPLING HALF; Connection Type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION. 13 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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