NSN 4820-00-003-8324

Safety Relief Valve
DEMIL
Shelf Life
UOM
NIIN
Demil:
NO
Shelf Life:
N/A
UOM:
1 EA
NIIN:
000038324

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Inventory

 

This product may be available in the following quantities and conditions.

  • NS: 81
  • NE: 811
  • OH: 1
  • AR: 9
  • SV: 1

Please note that inventory for this NSN was updated 08/12/2025 and may have changed since then. Request a quote for up to date pricing and availability.

Product Definition Definition of approved item name (AIN): "VALVE,SAFETY RELIEF"

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.

4820-00-003-8324 Spec. NSN part characteristics

MRC
Name
Detail
MRC:
AAJF
Thread Direction
Right-hand 1st end
MRC:
ADQU
Flow Control Device
Poppet
MRC:
ADSR
Bonnet Type
Inside screw
MRC:
ADST
Bonnet Attachment Method
Integral
MRC:
AHNC
Connection Style
Plain, optional en (pipe) 1st end
MRC:
AQLR
Valve Operation Method
Automatic
MRC:
AWLS
Connection Type
Threaded internal pipe 1st end
MRC:
CQGM
Maximum Operating Pressure
60.0 pounds per square inch single response
MRC:
CQJX
Thread Size
0.750 inches 2nd end
MRC:
CSDC
Opening Pressure Setting
30.0 pounds per square inch
MRC:
FEAT
Special Features
The end connection identified above as the second end is the valve inlet
MRC:
MATT
Material
Copper alloy body
MRC:
MEDA
Media For Which Designed
Water, fresh single response
MRC:
SFTT
Surface Treatment
Chromium
MRC:
STYL
Style Designator
Angle
MRC:
THSD
Thread Series Designator
Npt 1st end

Cross Reference Parts Part numbers that meet the specification outlined on this page and set by the OEM

Part Number
Cage
RNCC
RNVC
DAC
RNAAC
Status
MSDS
SADC
Part Number:
4010
Cage Code:
26465
RNCC:
3
RNVC:
2
DAC:
3
RNAAC:
AX
Status:
A
MSDS:
SADC:
Part Number:
10-321-70
Cage Code:
72219
RNCC:
3
RNVC:
2
DAC:
6
RNAAC:
AX
Status:
A
MSDS:
SADC:
Indicates a design/source control reference item
Inidicates part number has been superseded

Identification Item Identification Guide (IIG) and Item Name Code (INC)

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
Cond. Code:
1
Status:
A

Special material and handling

HMIC
PMIC
ESD
ENAC
ADPE
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
ADPE:
CRITL:
X
Hazmat (HMIC) N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Precious Metals (PMIC) U

Precious metal content is unknown

Criticality X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Import and Export

Schedule B
NAIC
End Use
SITC
USDA
HITECH
Schedule B:
8481400000
NAICS:
332911
End Use Class:
21180
SITC:
74740
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 8481400000

Safety Or Relief Valves

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74740

Safety Or Relief Valves

National motor freight and handling

NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
127220
NMF Description:
Pressure Reg/red/relief Valves Noi
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ADC:
A
ACC:
B

Freight Codes Definitions:

Cargo Type (TCC) Z

No special type of cargo code applicable.

Water Commodity (WCC) 594

Pumps and parts, (machinery and parts),(less than 35 feet).

Air Commodity (ACC) B

Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater.

Air Dimensions (ADC) A

Shipment is not a consolidation and does not exceed 84 inches in any dimension.

Air Special Handling (SHC) 9

Other or no special handling required (sh)

DLA Forecast / History

Maritime Supply Chain
07/2017
14.00