1L21F4T40S

Safety Relief Valve

NSN 4820-00-413-3144

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
004133144

Technical Specifications of NSN

Thread Class:
2b all ends
Thread Direction:
Right-hand all ends
Flow Control Device:
Piston
Disk Loading Method:
Spring
Valve Discharge Flow Rate:
40.0 gallons per minute
Connection Style:
G4 gasket sea (boss) all ends
Connection Style:
Gasket sea (boss) all ends
Valve Operation Method:
Automatic
Connection Type:
Threaded internal boss all ends
Features Provided:
Pressure tight outlet side
Maximum Operating Pressure:
4000.0 pounds per square inch single response
Thread Size:
0.250 inches all ends
Opening Pressure Setting:
2500.0 pounds per square inch
Material:
Aluminum alloy body
Material:
Steel flow control device
Material:
Steel seat
Media For Which Designed:
Fuel/oil, hydrocarbon single response
Style Designator:
Angle
Thread Series Designator:
Unf all ends
NSN:
4820-00-413-3144
Item Name:
Lock Valve Assembly
Cage Code:
8Z296

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:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
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:
594
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): "Lock Valve Assembly"

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

MOE Major Organizational Entities

Entity
DSOR
User:
DEPARTMENT OF THE NAVY Dept. of the Navy
DSOR:
Import / Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Classification: Safety or relief valves


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