Model: 3-844-75

Check Valve

Properties:

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Mounting Position
Horizontal
Thready Qty Per Inch (tpi)
18 1st end
Maximum Operating Pressure
160.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Stainless steel flow control device
Surface Treatment
Anodize
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
NSN
4820-00-486-2933
Part Number
3-844-75
Description
Valve,check
CAGE
92003

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 3-844-75 NSN 4820-00-486-2933

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:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
50.0
WCC:
594
TCC:
Z
SHC:
Z
ACC:
Equipment for Aircraft

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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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