Model: 340257-6

Quick Disconnect Coupling Half

Properties:

Thread Class
3a all ends
Overall Length
Between 2.620 inches and 2.645 inches
Quick Disconnect Method
Twist-lock all ends
Bolt Hole Quantity
6
Basic Shape Style
3 round first quick disconnect end
Basic Shape Style
Round first quick disconnect end
Connection Style
Flared all ends
Leg Length
1.125 inches
Connection Type
Internal quick disconnect all ends
Connection Type
Threaded external tube first fluid end connection
Features Provided
Self-sealing
Thread Size
0.562 inches all ends
Mounting Flange Location
Second leg
Seat Angle
37.0 degrees
Outside Diameter
1.605 inches
Thickness
0.050 inches
Bolt Hole Diameter
0.201 inches
Bolt Circle Diameter
1.687 inches
Outside Diameter Tube Accommodated
0.375 inches all ends
Material
Aluminum alloy body
Material Specification
Qq-a-225/6 federal specification single material response body
Surface Treatment
Anodize body
Surface Treatment Specification
Mil-a-8625 military specification single treatment response body
Style Designator
Male coupling half
Thread Series Designator
Unf all ends
NSN
4730-00-438-5281
Part Number
340257-6
Description
Coupling Half,quick Disconnect
CAGE

A fluid line fitting having a pipe, tube or hose connection or a through hole to accommodate a bolt, fluid passage on one end. The other end must have an internal or external quick disconnect feature for connecting a mating part to form a quick disconnect coupling assembly. The fitting may incorporate a self-sealing feature for the purpose of automatically shutting off the flow of fluid when disconnected from its mating half. For self-sealing fittings with an external or internal threaded disconnect end, see coupling half, self-sealing. See also, connector, multiple, fluid pressure line.

Part 340257-6 NSN 4730-00-438-5281

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
18681
FIIG:
A531T0
Concept No.:
App. Key:
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
HQ
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
052190
UFC:
30000
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
576
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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Schedule B and Export
  • Schedule B: 7609000000
  • SITC: 68427
  • End Use: Finished metal shapes
  • NAICS: 332919
  • USDA: 1

Freight Class: Aluminum tube or pipe fittings (couplings,elbows sleeves)

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