4820-01-397-7839

Safety Relief Valve email this page

Model or part number: 76913-21

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Description

Velocity Fuse NSN 4820-01-397-7839.

pdf NSN 4820-01-397-7839 Datasheet

MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3b all ends
MRC:
The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.AAJF
Thread Direction:
Right-hand all ends
MRC:
The part that controls the flow through the item.ADQU
Flow Control Device:
Disk
MRC:
The rated valve discharge capacity per unit of time.ADSY
Valve Discharge Flow Rate:
20.0 gallons per minute
MRC:
The national stock number or the identification information of the end equipment for which the item is a part.AGAV
End Application:
1730-01-272-4402
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
G4 gasket sea (boss) all ends
MRC:
The means used to control the operation of the valve.AQLR
Valve Operation Method:
Automatic
MRC:
Indicates the type of connection/s/.AWLS
Connection Type:
Threaded internal boss all ends
MRC:
The number of threads on the item per linear inch measured on a line parallel to the thread axis.CMLP
Thready Qty Per Inch (tpi):
12 all ends
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
1.312 inches all ends
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Aluminum alloy body
MRC:
The type of media for which the item is designed.MEDA
Media For Which Designed:
Air 1st response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Err-090
MRC:
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.THSD
Thread Series Designator:
Un all ends
MRC:
--
NIIN:
013977839
MRC:
--
NATO Stock Number:
4820-01-397-7839
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
A046B0
MRC:
--
INC:
05488
MRC:
--
IMM:
AX
Certified products icon

All Products Certified

Factory New, New Material, New Surplus, Overhauled, Serviceable, Repairable, and AS Removed / Used material will be accompanied by a Certificate of Conformance, and any other documents/trace when applicable. We have a 7 year record retention.

Quality inspections icon

Quality | ISO 9001:2015 + AS9120B

We are committed to quality and follow an AS9120 quality management system. AeroBase Group is HAZMAT certified and registered with DDTC, ITAR, and Aviation Suppliers Association (ASA). All products are 100% inspected.

Quality Commitment »

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Shipping

Delivery of IN-STOCK orders ship same-day when order is placed before 2:00 PM EST.

Delivery dates for NON-STOCK items are estimates based on current backlog and are subject to confirmation at the time of order.

Parts and Components for Liquid Service Unit NSN 1730-01-272-4402 Parts and components for this end application.

NSN Component Description
NSN 4820-01-397-1184 Expansion Valve
NSN 4820-01-397-1186 Angle Valve
NSN 4540-01-397-1188 Immer Electrical Heating Element
NSN 4730-01-397-1189 Sediment Strainer Element
NSN 4730-01-397-1190 Anchor And Reinforcem Pipe Clamp
NSN 4730-01-397-1192 Quick Disconnect Coupling Half
NSN 4730-01-397-1197 Quick Disconnect Coupling Half
NSN 4730-01-397-1198 Pipe To Boss Straight Adapter
NSN 1730-01-397-1610 Engine Mounted Duct
NSN 4820-01-397-2322 Safety Relief Valve
NSN 4820-01-397-2323 Safety Relief Valve
NSN 6350-01-397-4118 Signal Horn
NSN 6680-01-397-5170 Liquid Sight Indicator
NSN 4330-01-397-5304 Fluid Filter
NSN 6680-01-397-5643 Liquid Sight Indicator
NSN 6680-01-397-5648 Liquid Quantity Indicator
NSN 4720-01-397-7044 Nonmetallic Hose Assembly
NSN 4820-01-397-7045 Safety Relief Valve
NSN 4730-01-397-7049 Pipe Elbow
NSN 4820-01-397-7839 Safety Relief Valve
NSN 4720-01-397-7841 Nonmetallic Hose Assembly
NSN 4720-01-397-7842 Nonmetallic Hose Assembly
NSN 4720-01-397-7845 Nonmetallic Hose Assembly
NSN 4820-01-397-8587 Ball Valve
NSN 4820-01-397-8589 Check Valve
NSN 5975-01-398-0190 Blank Panel
NSN 6680-01-398-1885 Flow Rate Indicating Meter
NSN 5975-01-398-1886 Conduit Outlet
NSN 4820-01-398-1986 Safety Relief Valve
NSN 4820-01-398-1987 Plug Valve
NSN 4820-01-398-1989 Vacuum Regulating Valve
NSN 5945-01-398-2223 Electromagnetic Relay
NSN 5975-01-398-2690 Conduit Outlet
NSN 5975-01-398-2692 Electrical Box Connector
NSN 4820-01-398-3355 Float Valve

Formal Definition

Government issue definition of NSN 4820-01-397-7839

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.

Packaging & Dimensions

MIL-STD codes: http://www.dla.mil/LandandMaritime/.../MILSTD2073Codes.aspx
Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
LVL C
Container:
--
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q
LVL_C:
CUSH
MOP
CATEG.
PRES MAT
WRAP MAT
ICQ
THK
TOS
UCL
CUSH DUN:
XX
MOP:
AE
PKG:
16Z0
PRES MAT:
00
WRAP MAT:
XX
ICQ:
AAA
THK:
X
TOS:
UCL:

Packaging Codes Definitions:

LVL A Code (LVL_A) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with applicable specification for shipping container.

LVL B Code (LVL_B) Q

Packing shall be accomplished in accordance with table c.Ii for the packing level specified. closure, sealing and reinforcement shall be in accordance with the appropriate shipping container specification.

Procedure Indicator Code (OPI) O

Options can be exercised as to specific method of preservation or dod approved packaging materials to be used. however, basic preservation method shall be retained, supplemental data shall be complied with, and unit package dimensions shall not be increased by more than one inch. equal or better protection shall be given the item and there shall be no increase in the package cost.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) AE

Seal or plug all openings and preserve by method 10.

Preservation Material (PRES_MAT) 00

No requirement.

Import / Export

Schedule B Classification
Schedule B Number
NAIC National Association of Insurance Commissioners
End Use A classification system for U.S. exported and imported merchandise based on principal use rather than the physical characteristics of the merchandise. End-Use codes are assigned by the Bureau of Economic Analysis under the U.S. Department of Commerce.
SITC Commodity classification system defined by the United Nations.
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

Freight

Universal / National freight and handling information
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:
V

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) V

Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing.

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)

Manufacturers

This NSN is registered to the following cage codes.
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