Model: 4905F

Check Valve

Properties:

Pipe Size Accommodated
2.000 inches 1st end
Flow Control Device
Disk
Connection Style
Beveled (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Butt weld pipe 1st end
Mounting Position
Horizontal
Maximum Operating Pressure
2500.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Material
Cobalt alloy body lining
Media For Which Designed
Water, fresh single response
Style Designator
Straight thru
Reference Number Differentiating Characteristics
Selected and tested for nuclear propulsion plant systems
NSN
4820-00-722-8993
Part Number
4905F
Description
Valve,check
CAGE
04537

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 4905F NSN 4820-00-722-8993

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:
Y

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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