1R7731-1

Restrictor Check Valve

NSN 4820-00-043-2110

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
000432110

Product Features

Bulkhead fitting on first end

Technical Specifications of NSN

Thread Class:
3a 2nd end
Thread Class:
3a 1st end
Thread Direction:
Right-hand 2nd end
Thread Direction:
Right-hand 1st end
Aperture Diameter:
0.014 inches
Flow Control Device:
Poppet
Disk Loading Method:
Spring
Maximum Operating Temp:
275.0 degrees fahrenheit single response
Connection Style:
Flared (tube) 1st end
Connection Style:
Flared (tube) 2nd end
Valve Operation Method:
Automatic
Connection Type:
Threaded external tube 1st end
Connection Type:
Threaded external tube 2nd end
Mounting Position:
Horizontal or vertical
Maximum Operating Pressure:
3000.0 pounds per square inch single response
Thread Size:
0.375 inches 2nd end
Thread Size:
0.375 inches 1st end
Seat Angle:
37.0 degrees 1st end
Seat Angle:
37.0 degrees 2nd end
Material:
Rubber synthetic packing
Material:
Steel comp 303 body
Material:
Steel comp 303 flow control device
Material Specification:
Qq-s-764, type 303-cancelled federal specification single material response body
Material Specification:
Qq-s-764, type 303-cancelled federal specification single material response flow control device
Media For Which Designed:
Hydraulic fluid, phosphate-ester base single response
Surface Treatment:
Passivate
Surface Treatment Specification:
Mil-s-5002 military specification all treatment responses
Style Designator:
Straight thru
Thread Series Designator:
Unf 1st end
Thread Series Designator:
Unf 2nd end
NSN:
4820-00-043-2110
Item Name:
Restrictor Valve
Cage Code:
26044

Other Related Parts

No other part numbers with same form, fit, and function found.

Part Identification

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20520
FIIG:
A530B0
Concept No.:
1
App. Key:
Cond. Code:
1
Status:
A

Part Materials

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:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Pricing & Availability

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Privacy | Terms

Definition Definition of approved item name (AIN): "Restrictor Valve"

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.

MOE Major Organizational Entities

Entity
DSOR
User:
DEPARTMENT OF THE NAVY Dept. of the Navy
DSOR:
Import / Export
  • Schedule B: 8481302090
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Classification: Check valves of steel


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