Model: 4578FNPP

Stop-check Valve

Properties:

Offset Distance
2.250 inches
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Renewable Seat Ring Type
Threaded
Valve Operation Method
Manual
Flange Shape
Round 1st end
Connection Type
Flange 1st end
Mounting Position
Horizontal
Features Provided
Bonnet packing
Valve Size
1.500 inches
Maximum Operating Pressure
600.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Outside Diameter
6.125 inches 1st end
Face To Face Distance
12.000 inches
Thickness
0.875 inches 1st end
Flange Face Design
Raised straight 1st end
Raised Face Height
0.250 inches 1st end
Raised Face Diameter
2.875 inches 1st end
Material
Nickel alloy 400 body
Material
Nickel alloy 400 stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight through w/offset flanged ends
Reference Number Differentiating Characteristics
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
NSN
4820-00-187-6698
Part Number
4578FNPP
Description
Valve,stop-check
CAGE

A valve with a bolt or stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also valve (1), lift-check and valve (1), stop-lift-check.

Part 4578FNPP NSN 4820-00-187-6698

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05486
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
2
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:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
17.0 X 13.0 X 24.0
Paclk Weight:
101.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
F

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8481309000
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of materials other than copper, iron or steel

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