Model: 402681-3

Restrictor Check Valve

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Aperture Diameter
0.055 inches
Flow Control Device
Cone
Connection Style
Flared (tube) 1st end
Connection Type
Threaded external tube 1st end
Thready Qty Per Inch (tpi)
18 1st end
Maximum Operating Pressure
1500.0 pounds per square inch single response
Thread Size
0.750 inches 1st end
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
0.500 inches 1st end
Material
Aluminum alloy body
Material
Rubber synthetic packing
Media For Which Designed
Hydraulic fluid, mineral base single response
Style Designator
Straight thru
Thread Series Designator
Un 1st end
NSN
4820-00-032-8391
Part Number
402681-3
Description
Valve,restrictor Check
CAGE
59364

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

Part 402681-3 NSN 4820-00-032-8391

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20520
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:
77.5
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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