A51H9209-3

Restrictor Check Valve

NSN 4820-00-485-7841

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
004857841

Product Features

The end connection identified above as the second end is the valve inlet

Technical Specifications of NSN

Thread Class:
3a 2nd end
Thread Class:
3b 1st end
Thread Direction:
Right-hand 2nd end
Thread Direction:
Right-hand 1st end
Flow Control Device:
Poppet
Disk Loading Method:
Spring
Maximum Operating Temp:
275.0 degrees fahrenheit single response
Connection Style:
External seat for gasket seal (boss) 2nd end
Connection Style:
Gasket seal (boss) 1st end
Valve Operation Method:
Automatic
Connection Type:
Threaded external boss 2nd end
Connection Type:
Threaded internal boss 1st end
Mounting Position:
Horizontal or vertical
Thready Qty Per Inch (tpi):
20 1st end
Maximum Operating Pressure:
3000.0 pounds per square inch single response
Thread Size:
0.437 inches 1st end
Thread Size:
0.437 inches 2nd end
Outside Diameter Tube Accommodated:
0.250 inches 1st end
Outside Diameter Tube Accommodated:
0.250 inches 2nd end
Material:
Aluminum alloy 518.0 seat
Material:
Aluminum alloy 518.0 body
Surface Treatment:
Anodize
Style Designator:
Straight thru
Thread Series Designator:
Unf 2nd end
Thread Series Designator:
Unjf 1st end
NSN:
4820-00-485-7841
Item Name:
Restrictor Valve
Cage Code:
26512

Other Related Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
A51H209-3
Cage Code:
61174
RNCC:
1
RNVC:
2
RNAAC:
KE
Status:
A
MSDS:
SADC:
Part Number:
46130
Cage Code:
99643
RNCC:
3
RNVC:
2
RNAAC:
KE
Status:
A
MSDS:
SADC:
Part Number:
A51H209-3
Cage Code:
26512
RNCC:
5
RNVC:
9
RNAAC:
KE
Status:
A
MSDS:
SADC:

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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
LCL:
--
WCC:
736
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: 8481309000
  • SITC: 74730
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Classification: Check valves of materials other than copper, iron or steel


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