4820-00-439-6931

Safety Relief Valve email this page

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Reference images of this national stock number
Reference of NSN 4820-00-439-6931

Model or part number: A80292

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Description

Velocity Fuse NSN 4820-00-439-6931.

pdf NSN 4820-00-439-6931 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:
Piston
MRC:
The means of closing the item when inlet pressure decreases.ADSU
Disk Loading Method:
Spring
MRC:
The rated valve discharge capacity per unit of time.ADSY
Valve Discharge Flow Rate:
2.0 gallons per minute
MRC:
The maximum temperature at which the item is rated to operate for an extended period of time.AEHZ
Maximum Operating Temp:
160.0 degrees fahrenheit single response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
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):
20 all ends
MRC:
The maximum pressure at which the item is rated for operation.CQGM
Maximum Operating Pressure:
3300.0 pounds per square inch single response
MRC:
A designation that is used for the purpose of general identification of the thread.CQJX
Thread Size:
0.437 inches all ends
MRC:
The angle of the end surface upon which the mated surface seats.CQRB
Seat Angle:
45.0 degrees all ends
MRC:
The predetermined pressure at which the item is calibrated to open.CSDC
Opening Pressure Setting:
65.0 pounds per square inch
MRC:
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.CWFD
Outside Diameter Tube Accommodated:
0.250 inches all ends
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Stainless steel flow control device
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Straight through note: to be used for valve bodies of separable sections.
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:
Unf all ends
MRC:
--
NIIN:
004396931
MRC:
--
NATO Stock Number:
4820-00-439-6931
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
FIIG:
--
FIIG:
A046B0
MRC:
--
INC:
05488
MRC:
--
IMM:
AX
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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.

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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.

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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.

Formal Definition

Government issue definition of NSN 4820-00-439-6931

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:
0.4000lbs
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
LVL C
Container:
--
OPI:
M
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:
20
PKG:
18ZZ
PRES MAT:
15
WRAP MAT:
GB
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) M

All packaging data is mandatory for compliance and no substitutions are permitted. fast packs should be included in this category.

Special Markings Code (SPC_MKG) 00

No special marking.

Method of Preservation (MOP) 20

Preservative coating only (with greaseproof wrap, as required).

Preservation Material (PRES_MAT) 15

Mil-prf-46170, hydraulic fluid, synthetic, rust inhibited, fire resistant.

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:
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)

Manufacturers

This NSN is registered to the following cage codes.
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