Model: E17520

Check Valve

Properties:

Thread Class
2a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Connection Style
Plain (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external pipe all ends
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
12 all ends
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
2.125 inches all ends
Material
Steel comp 303 body
Material
Steel comp 303 seat
Material Specification
Fed-std-66, aisi 303/sae 30303 federal standard single material response seat
Material Specification
Fedstd66, aisi 303/sae 30303 federal standard single material response body
Style Designator
Straight thru
Supplementary Features
Additional flow control device: stem
Thread Series Designator
Uns all ends
NSN
4820-00-788-8511
Part Number
E17520
Description
Valve,check
CAGE
77842

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 E17520 NSN 4820-00-788-8511

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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