Model: 821580

Check Valve

Properties:

Thread Class
3a 2nd end
Thread Class
3a 1st end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Piston
Connection Style
Flared (tube) 1st end
Connection Style
Flareless 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Thready Qty Per Inch (tpi)
18 1st end
Maximum Operating Pressure
600.0 pounds per square inch single response
Thread Size
0.562 inches 1st end
Thread Size
0.562 inches 2nd end
Seat Angle
12.0 degrees 2nd end
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
0.375 inches 2nd end
Outside Diameter Tube Accommodated
0.375 inches 1st end
Style Designator
Straight thru
Thread Series Designator
Unf 1st end
Thread Series Designator
Unf 2nd end
NSN
4820-00-101-7931
Part Number
821580
Description
Valve,check
CAGE
04845

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 821580 NSN 4820-00-101-7931

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:
A
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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