Model: 8R7661-1

Restrictor Check Valve

Special Features:

2.250 in. Lg over-all, 0.812 in. Across flats

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Maximum Operating Temp
230.0 degrees fahrenheit single response
Connection Style
Flared (tube) 1st end
Connection Type
Threaded external tube 1st end
Connection Type
Threaded external tube 2nd end
Thready Qty Per Inch (tpi)
18 1st end
Maximum Operating Pressure
3000.0 pounds per square inch single response
Thread Size
0.562 inches 1st end
Seat Angle
37.0 degrees 1st end
Outside Diameter Tube Accommodated
0.375 inches 1st end
Material
Rubber synthetic packing
Material
Steel body
Material
Steel flow control device
Style Designator
Straight thru
Thread Series Designator
Unf 1st end
NSN
4820-00-810-4134
Part Number
8R7661-1
Description
Valve,restrictor Check
CAGE
26044

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 8R7661-1 NSN 4820-00-810-4134

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:
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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