Model: FR121A1

Safety Relief Valve

Properties:

Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Maximum Operating Temp
260.0 degrees fahrenheit single response
Connection Style
G4 gasket sea (boss) 1st end
Connection Style
G50 external seat for gasket seal (boss) 2nd end
Connection Style
External seat for gasket seal (boss) 2nd end
Connection Style
Gasket sea (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 2nd end
Connection Type
Threaded internal boss 1st end
Thready Qty Per Inch (tpi)
27 1st end
Thready Qty Per Inch (tpi)
27 2nd end
Maximum Operating Pressure
100.0 pounds per square inch single response
Thread Size
0.125 inches 1st end
Thread Size
0.125 inches 2nd end
Media For Which Designed
Oxygen, liquid single response
Style Designator
C1 angle
Style Designator
Angle
Thread Series Designator
Anpt 1st end
Thread Series Designator
Anpt 2nd end
NSN
4820-00-019-9611
Part Number
FR121A1
Description
Valve,safety Relief
CAGE
99251

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 FR121A1 NSN 4820-00-019-9611

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:
BO
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.2000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
ZZ
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:
Z
ACC:
Equipment for Aircraft

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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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