Model: 408-6S2-2

Check Valve

Special Features:

2.0 psi valve cracking pressure, center od periphery of body w/groove for o-ring seal

Properties:

Pipe Size Accommodated
1.000 inches all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Unthreaded external pipe all ends
Mounting Position
Horizontal or vertical
Maximum Operating Pressure
3000.0 pounds per square inch single response
Material
Steel body
Material
Steel comp 304 flow control device and rubber butadiene-acrylonitrile class nbr flow control device and steel comp 303 flow control device
Material
Steel seat
Material Specification
Fed-std-66 military specification single material response flow control device
Material Specification
Fedstd66 federal specification single material response body
Material Specification
Mil-p-5516, class b federal standard single material response seat
Media For Which Designed
Air 1st response
Media For Which Designed
Oil, hydraulic 2nd response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416 federal specification single treatment response
Style Designator
Straight thru
NSN
4820-00-875-8247
Part Number
408-6S2-2
Description
Valve,check
CAGE
86768

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 408-6S2-2 NSN 4820-00-875-8247

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05487
FIIG:
A530B0
Concept No.:
1
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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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