Model: P51-389

Check Valve

Special Features:

Inlet flow from boss end

Properties:

Thread Class
3a 1st end
Thread Class
3b 2nd end
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
300.0 degrees fahrenheit single response
Connection Style
Flared (tube) 1st end
Connection Style
Gasket seal (boss) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded external tube 1st end
Connection Type
Threaded internal boss 2nd end
Mounting Position
Horizontal or vertical
Thready Qty Per Inch (tpi)
18 1st end
Maximum Operating Pressure
60.0 pounds per square inch single response
Thread Size
0.562 inches all ends
Seat Angle
37.0 degrees 1st end
Material
Aluminum alloy 6061 flow control device
Material
Aluminum alloy 2024 body
Material Specification
Qq-a-225/8 federal specification single material response flow control device
Material Specification
Qq-a-225/6 federal specification single material response body
Media For Which Designed
Fuel/oil, hydrocarbon single response
Surface Treatment
Anodize
Surface Treatment Specification
Mil-a-8625 military specification single treatment response
Style Designator
Straight thru
Thread Series Designator
Unjf all ends
NSN
4820-01-026-2931
Part Number
P51-389
Description
Valve,check
CAGE
91816

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 P51-389 NSN 4820-01-026-2931

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:
U
ESD:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
576
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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