4P138-3

Safety Relief Valve

NSN 4820-00-139-0381

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
001390381

Technical Specifications of NSN

Thread Class:
3a 1st end
Thread Direction:
Right-hand 1st end
Flow Control Device:
Ball
Disk Loading Method:
Spring
Renewable Seat Ring Type:
Pressed-in
Connection Style:
G42 flared (tube) 1st end
Connection Style:
Flared (tube) 1st end
Valve Operation Method:
Automatic
Connection Type:
Threaded external tube 1st end
Features Provided:
Pressure tight outlet side
Thready Qty Per Inch (tpi):
20 1st end
Adjustable Pressure Range:
+100.0/+120.0 pounds per square inch
Adjustable Pressure Range:
+100.0 to 120.0 pounds per square inch
Thread Size:
0.437 inches 1st end
Seat Angle:
37.0 degrees 1st end
Outside Diameter Tube Accommodated:
0.250 inches 1st end
Material:
Steel comp 303 body
Material:
Steel comp 303 seat
Material Specification:
Qq-s-764 federal specification single material response body
Material Specification:
Qq-s-764 federal specification single material response seat
Thread Series Designator:
Unf 1st end
NSN:
4820-00-139-0381
Item Name:
Cartridge,relief Valve
Cage Code:
82829

Other Related Parts

No other part numbers with same form, fit, and function found.

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:
A
ESD:
ESD:
MMAC:
SX
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:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
051080
UFC:
29300
LTL:
RATING VARIABLE
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): "Relief Valve Cartridge"

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 AIR FORCE Dept. of the Air Force
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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