Model: 488-4-1

Check Valve

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
200.0 degrees fahrenheit 1st response
Maximum Operating Temp
200.0 degrees fahrenheit 2nd response
Maximum Operating Temp
200.0 degrees fahrenheit 3rd response
Connection Style
Flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
20 all ends
Maximum Operating Pressure
3000.0 pounds per square inch 1st response
Maximum Operating Pressure
3000.0 pounds per square inch 2nd response
Maximum Operating Pressure
3000.0 pounds per square inch 3rd response
Thread Size
0.438 inches all ends
Seat Angle
37.0 degrees all ends
Outside Diameter Tube Accommodated
0.250 inches all ends
Material
Copper alloy seat
Material
Copper alloy body
Material
Steel comp 304 flow control device and rubber synthetic flow control device
Material Specification
66 federal standard 1st material response flow control device
Style Designator
Straight thru
Thread Series Designator
Unf all ends
NSN
4820-00-810-0988
Part Number
488-4-1
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 488-4-1 NSN 4820-00-810-0988

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:
127220
UFC:
64490
LTL:
77.5
LCL:
77.5
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481301090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over

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