Model: 20197BS51SSL1

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
165.0 degrees fahrenheit single response
Valve Operation Method
Automatic or manual
Connection Type
Unthreaded internal pipe all ends
Adjustable Pressure Range
+1401.0/+1800.0 pounds per square inch
Maximum Operating Pressure
3450.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Material
Steel comp 303 seat
Material
Steel comp 303 stem
Material
Stainless steel body
Material
Stainless steel flow control device
Material Specification
Astm a351 assn standard single material response body
Material Specification
Astm a582, type 303 assn standard single material response seat
Material Specification
Astm a582, type 303 assn standard single material response stem
Furnished Items And Quantity
2 tailpiece
Reference Number Differentiating Characteristics
Quality control in accordance with navships 0948-045-7010 material identification and control instruction for level 1 items
NSN
4820-01-408-2665
Part Number
20197BS51SSL1
Description
Valve,safety Relief
CAGE
03950

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 20197BS51SSL1 NSN 4820-01-408-2665

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:
A
ESD:
ESD:
MMAC:
CRITL:
S

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:
A
SPI No.:
SPI Rev.:
SPC Mkg:
24
LVL_A:
F
LVL_B:
F

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:
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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