Model: B31644C

Stop-check Valve

Properties:

Pipe Size Accommodated
1.000 inches 1st end
Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
775.0 degrees fahrenheit single response
Connection Style
Socket (pipe) 1st end
Valve Operation Method
Manual
Connection Type
Unthreaded internal pipe 1st end
Mounting Position
Horizontal or vertical
Features Provided
Valve stem lock shield and bonnet packing
Maximum Operating Pressure
1500.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Material
Steel comp 410 flow control device
Material
Steel comp 410 seat
Material
Stainless steel stem
Media For Which Designed
Steam single response
Style Designator
Straight thru
Reference Number Differentiating Characteristics
Quality control iaw navships 0948-045-7010 material identification and control instruction for level 1 items
NSN
4820-00-121-6872
Part Number
B31644C
Description
Valve,stop-check
CAGE
63220

Part B31644C NSN 4820-00-121-6872

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:
S

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
21.0 X 12.5 X 12.5
Paclk Weight:
52.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
LVL_A:
E
LVL_B:
Q

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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