Model: 1977621 ITEM 38

Check Valve

Properties:

Thread Class
3a 1st end
Thread Class
3b 2nd end
Thread Direction
Right-hand all ends
Flow Control Device
Disk
Maximum Operating Temp
250.0 degrees fahrenheit 1st response
Maximum Operating Temp
300.0 degrees fahrenheit 2nd response
Connection Style
Flared (tube) 1st end
Connection Style
Flare (tube) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Connection Type
Threaded internal tube 2nd end
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
1.313 inches all ends
Seat Angle
45.0 degrees 1st end
Opening Pressure Setting
5.0 pounds per square inch
Outside Diameter Tube Accommodated
1.000 inches 2nd end
Material
Steel body
Media For Which Designed
Water, fresh 2nd response
Media For Which Designed
Air 1st response
Surface Treatment
Cadmium
Style Designator
Straight thru
Thread Series Designator
Un all ends
NSN
4820-01-325-8151
Part Number
1977621 ITEM 38
Description
Valve,check
CAGE
03956

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 1977621 ITEM 38 NSN 4820-01-325-8151

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:
X

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: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Check valves of steel

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