537A-4D-5

Safety Relief Valve

NSN 4820-00-138-3920

DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
001383920

Detail Specifications

Thread Class:
3a 1st end
Thread Direction:
Right-hand 1st end
Flow Control Device:
Poppet
Disk Loading Method:
Spring
Maximum Operating Temp:
250.0 degrees fahrenheit single response
Connection Style:
G46a plain (tube) 1st end
Connection Style:
Plain (tube) 1st end
Valve Operation Method:
Automatic
Connection Type:
Threaded external tube 1st end
Thready Qty Per Inch (tpi):
20 1st end
Maximum Operating Pressure:
200.0 pounds per square inch single response
Thread Size:
0.437 inches 1st end
Opening Pressure Setting:
5.0 pounds per square inch
Outside Diameter Tube Accommodated:
0.250 inches 1st end
Material:
Aluminum alloy 2024 flow control device and rubber butadiene-acrylonitrile class nbr flow control device
Material:
Aluminum alloy 2024 seat
Material:
Aluminum alloy 2024 body
Material:
Aluminum alloy 2024 and rubber butadiene-acrylonitrile class nbr flow control device
Material Specification:
Qq-a-225/6, alloy2024, t4 federal specification single material response body
Material Specification:
Qq-a-225/6, alloy2024, t4 federal specification single material response seat
Material Specification:
Qq-a-225/6, alloy2024, t4 federal specification 1st material response flow control device
Media For Which Designed:
Water-oil-gas single response
Surface Treatment:
Anodize
Surface Treatment Specification:
Mil-a-8625, type 1 military specification single treatment response
Style Designator:
Straight thru
Thread Series Designator:
Unjf 1st end
NSN:
4820-00-138-3920
Item Name:
Valve,relief,pressure
Cage Code:
91816

Manufacturer Part Numbers

Part Number
Cage
RNCC
RNVC
RNAAC
Status
MSDS
SADC
Part Number:
58562-2
Cage Code:
77646
RNCC:
5
RNVC:
2
RNAAC:
KE
Status:
A
MSDS:
SADC:
Part Number:
577A-4D-5
Cage Code:
91816
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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
1.0000lbs
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): "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:
User:
ISRAEL Israel
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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