4820-00-493-4342

Restrictor Check Valve email this page

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Model or part number: 1R3142-35

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Description

Restrictor Valve NSN 4820-00-493-4342.

pdf NSN 4820-00-493-4342 Datasheet

MRC:
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.AAJD
Thread Class:
3a 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:
Poppet
MRC:
The means of closing the item when inlet pressure decreases.ADSU
Disk Loading Method:
Spring
MRC:
The maximum temperature at which the item is rated to operate for an extended period of time.AEHZ
Maximum Operating Temp:
275.0 degrees fahrenheit single response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.AHNC
Connection Style:
Flareless 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 external tube all ends
MRC:
The facility for mounting the item.AZGM
Mounting Facility:
Bulkhead
MRC:
The installed position for which the item is designed.BBJX
Mounting Position:
Horizontal or vertical
MRC:
The maximum pressure at which the item is rated for operation.CQGM
Maximum Operating Pressure:
3000.0 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:
12.0 degrees all ends
MRC:
The chemical compound or mechanical mixture properties of which the item is fabricated.MATT
Material:
Steel comp 303 flow control device
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.MDCL
Material Specification:
Qq-s-764, type 303-cancelled federal specification single material response flow control device
MRC:
The type of media for which the item is designed.MEDA
Media For Which Designed:
Fuel/oil, hydrocarbon single response
MRC:
The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.SFTT
Surface Treatment:
Anodize and enamel
MRC:
The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.STDC
Surface Treatment Specification:
Mil-a-8625, type 2 military specification single treatment response
MRC:
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.STYL
Style Designator:
Straight thru
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:
004934342
MRC:
--
NATO Stock Number:
4820-00-493-4342
MRC:
--
Shelf Life:
N/A
MRC:
--
UOM:
--
MRC:
--
DEMIL:
No
MRC:
N/A
MIL-STD
MIL-A-8625 Spec.
FIIG:
--
FIIG:
A530B0
MRC:
--
INC:
20520
MRC:
--
IMM:
AX
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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 4820-00-493-4342

A valve having an orifice in the poppet, disk, or the like, to permit restricted fluid flow when the valve is seated. It does not have a stem or provisions for pressure adjustments, and is similar to a valve, check with the exception of the orifice which permits fluid flow in more than one direction.

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:
1.3000lbs
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:
ZZ
PKG:
41ZZ
PRES MAT:
XX
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) ZZ

See j.4.1.B.

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:
8481309000
NAICS:
332911
End Use Class:
21180
SITC:
74730
USDA:
1
HITECH:
0

Schedule B Codes Definitions:

Schedule B 8481309000

Check Valves Of Materials Other Than Copper, Iron Or Steel

End Use Code 21180

Industrial Machines, Other

Standard Intl. Trade Class (SITC) 74730

Check Valves

Freight

Universal / National freight and handling information
NMFC
Class
UFC
LTL
LCL
WCC
TCC
SHC
ADC
ACC
NMFC:
051080
NMF Description:
Gates Valves Bibcocks Faucets
UFC:
29300
LTL:
Rating variable
LCL:
--
WCC:
576
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) 576

Metal and metal products, nos, (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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