631B2-34-1

Safety Relief Valve

NSN 4820-00-137-1835

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
001371835

Technical Specifications of NSN

Pipe Size Accommodated:
0.750 inches 1st end
Pipe Size Accommodated:
0.750 inches 2nd end
Thread Direction:
Right-hand 2nd end
Thread Direction:
Right-hand 1st end
Flow Control Device:
Poppet
Bonnet Type:
Inside spring
Bonnet Attachment Method:
Threaded
Disk Loading Method:
Spring
Maximum Operating Temp:
225.0 degrees fahrenheit single response
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
Adjustable Pressure Range:
+10.0/+50.0 pounds per square inch
Adjustable Pressure Range:
+10.0 to 50.0 pounds per square inch
Maximum Operating Pressure:
50.0 pounds per square inch single response
Thread Size:
0.750 inches 1st end
Thread Size:
0.750 inches 2nd end
Opening Pressure Setting:
35.0 pounds per square inch
Material:
Copper alloy seat
Material:
Copper alloy body
Material:
Steel comp 303 flow control device
Material Specification:
Fedstd66, aisi303/sae30303 federal standard single material response flow control device
Media For Which Designed:
Water-oil-gas single response
Style Designator:
Angle
Thread Series Designator:
Anpt 1st end
Thread Series Designator:
Anpt 2nd end
NSN:
4820-00-137-1835
Item Name:
Valve,relief,pressure
Cage Code:
09990

Other Related Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
631B2-3/4-1
Cage Code:
86768
RNCC:
5
RNVC:
9
RNAAC:
AX
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

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:
Trailers/Vehicles

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Pricing & Availability

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Privacy | Terms

Definition Definition of approved item name (AIN): "Pressure Relief Valve"

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:
DEPARTMENT OF THE NAVY Dept. of the Navy
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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