Model: 481-3-8SS1

Check Valve

Properties:

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
300.0 degrees fahrenheit single response
Connection Style
Plain (pipe) 1st end
Connection Style
Plain, optional end (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded internal pipe 2nd end
Mounting Position
Vertical
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.375 inches all ends
Opening Pressure Setting
1.0 pounds per square inch
Material
Rubber synthetic seat
Material
Steel comp 303 body
Material
Steel comp 304 flow control device
Material Specification
Fed standard 66, aisi 303/sae 30303 federal standard single material response body
Material Specification
Fed standard 66, aisi 304/sae 30304 federal standard single material response flow control device
Media For Which Designed
Water, fresh 3rd response
Media For Which Designed
Air 2nd response
Media For Which Designed
Oil, hydraulic 1st response
Surface Treatment
Passivate
Style Designator
Straight thru
Thread Series Designator
Npt all ends
NSN
4820-00-735-6792
Part Number
481-3-8SS1
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 481-3-8SS1 NSN 4820-00-735-6792

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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