Model: 20256Z51M

Pressure And Temper Relief Valve

Properties:

Body Material
Nickel copper alloy, qq-n-288, comp a
Body Style
Angle give "adqm" and "adqn" only if flanged one or two ends
Stem Material
Nickel copper alloy, qq-n-286, class a or nickel copper alloy, qq-n-286, class b
Tempurature Rating
165.0 degrees fahrenheit
Seat Material
Nickel copper alloy, qq-n-288, comp a
First Connection Face To Centerline Distance
6.938 inches
Second Connection Face To Centerline Distance
6.438 inches
Flow Control Device Material
Nickel copper alloy, qq-n-286, class a or nickel copper alloy, qq-n-286, class b
Adjustable Pressure Range
+501.0/+600.0 pounds per square inch
Tempurature Adjustability
Not adjustable
Criticality Code Justification
Zzzy
Fsc Application Data
Valve safety relief
Reference Number Differentiating Characteristics
Quality control iaw navships 0948-045-7010 material identification and control instruction for level 1 items
NSN
4820-01-312-8198
Part Number
20256Z51M
Description
Valve,relief,pressure And Temper
CAGE
01343

A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.

Part 20256Z51M NSN 4820-01-312-8198

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16996
FIIG:
A07100
Concept No.:
1
App. Key:
AR
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:
26.0 X 22.0 X 22.0
Paclk Weight:
115.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
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:
Trailers/Vehicles

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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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