631B4-18-27

Safety Relief Valve

NSN 4820-00-090-0979

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
000900979

Product Features

The end connection identified as the second end is the valve inlet

Detail Specifications

Pipe Size Accommodated:
0.125 inches 2nd end
Pipe Size Accommodated:
0.125 inches 1st end
Thread Direction:
Right-hand 2nd end
Thread Direction:
Right-hand 1st end
Flow Control Device:
Poppet
Bonnet Type:
Inside screw
Bonnet Attachment Method:
Integral
Disk Loading Method:
Spring
Maximum Operating Temp:
180.0 degrees fahrenheit single response
End Application:
Grumman aircraft model a10
Connection Style:
G46b plain (pipe) 2nd end
Connection Style:
G9 plain, optional en (pipe) 1st end
Connection Style:
Plain (pipe) 2nd end
Connection Style:
Plain, optional en (pipe) 1st end
Valve Operation Method:
Automatic
Connection Type:
Threaded external pipe 2nd end
Connection Type:
Threaded internal pipe 1st end
Features Provided:
Pressure tight outlet side
Adjustable Pressure Range:
+115.0/+250.0 pounds per square inch
Adjustable Pressure Range:
+115.0 to 250.0 pounds per square inch
Maximum Operating Pressure:
3100.0 pounds per square inch single response
Thread Size:
0.125 inches 1st end
Thread Size:
0.125 inches 2nd end
Opening Pressure Setting:
200.0 pounds per square inch
Material:
Copper alloy seat
Material:
Copper alloy body
Material:
Stainless steel flow control device
Material Specification:
Aisi416 assn standard single material response flow control device
Media For Which Designed:
Fuel/oil, hydrocarbon 1st response
Media For Which Designed:
Oil, hydraulic 2nd response
Surface Treatment:
Passivate
Style Designator:
Angle
Thread Series Designator:
Anpt 1st end
Thread Series Designator:
Anpt 2nd end
NSN:
4820-00-090-0979
Item Name:
Velocity Fuse
Cage Code:
86768

Manufacturer Part Numbers

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
631B-4-1/8-27
Cage Code:
09990
RNCC:
3
RNVC:
2
RNAAC:
9Z
Status:
A
MSDS:
SADC:

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

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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Pricing & Availability

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Privacy | Terms

Definition Definition of approved item name (AIN): "Velocity Fuse"

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:
SINGAPORE Singapore
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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