645B-4-12-2

Safety Relief Valve

NSN 4820-00-942-9134

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
UOM:
NIIN:
009429134

Technical Specifications of NSN

Thread Direction:
Right-hand 1st end
Disk Loading Method:
Spring
Maximum Operating Temp:
-65.0 degrees fahrenheit 1st response
Maximum Operating Temp:
225.0 degrees fahrenheit 2nd response
Connection Type:
Threaded internal tube 1st end
Features Provided:
Pressure tight outlet side
Thready Qty Per Inch (tpi):
12 1st end
Maximum Operating Pressure:
200.0 pounds per square inch single response
Thread Size:
1.500 inches 1st end
Opening Pressure Setting:
200.0 pounds per square inch
Outside Diameter Tube Accommodated:
0.750 inches 1st end
Material:
Stainless steel body
Material:
Stainless steel seat
Media For Which Designed:
Fuel/oil, hydrocarbon single response
Style Designator:
Angle
Thread Series Designator:
Un 1st end
NSN:
4820-00-942-9134
Item Name:
Fuse,velocity
Cage Code:
86768

Other Related Parts

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
645B-4-12-2
Cage Code:
09990
RNCC:
3
RNVC:
2
RNAAC:
ZZ
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

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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.

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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