Model: 146D529-1

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.750 inches all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Renewable Seat Ring Type
Pressed-in
Valve Operation Method
Automatic or manual
Features Provided
Valve stem lock shield and pressure tight outlet side
Maximum Operating Pressure
75.0 pounds per square inch single response
Opening Pressure Setting
75.0 pounds per square inch
Material
Copper alloy flow control device
Material
Copper alloy stem
Material
Copper alloy body
Material
Plastic seat
Media For Which Designed
Hydraulic fluid, phosphate-ester base 2nd response
Media For Which Designed
Hydraulic fluid, silicate-ester base 1st response
NSN
4820-00-981-3351
Part Number
146D529-1
Description
Valve,safety Relief
CAGE
28528

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.

Part 146D529-1 NSN 4820-00-981-3351

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

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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Schedule B and Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

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