Model: SC251PWS 1-2IN

Stop-check Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Connection Style
Streamlined with one brazing ring (tube) all ends
Valve Operation Method
Automatic
Connection Type
Unthreaded internal tube all ends
Mounting Position
Horizontal or vertical
Features Provided
Valve stem lock shield
Maximum Operating Pressure
700.0 pounds per square inch single response
Outside Diameter Tube Accommodated
0.500 inches all ends
Material
Nickel alloy stem
Material
Nickel alloy body
Material
Nickel alloy flow control device
Material Specification
Mil-c-15726, comp 70-30 military specification single material response body
Material Specification
Qq-n-281, class b federal specification single material response flow control device
Material Specification
Qq-n-281, class b federal specification single material response stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Straight thru
Furnished Items And Quantity
1 handwheel
NSN
4820-01-134-8795
Part Number
SC251PWS 1-2IN
Description
Valve,stop-check
CAGE
63686

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 SC251PWS 1-2IN NSN 4820-01-134-8795

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.6000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
671
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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