Lift-Check Valve
668101-4
(NSN) National Stock Number
4820-00-204-1955
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
27828
Schedule B Code
8481309000
Summary
3b all ends thread class, right-hand all ends thread direction, disk flow control device, inside screw bonnet type, integral bonnet attachment method, spring disk loading method
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| 5 | - | - | 5 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | AX |
Identification
A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 27828 | A530B0 | 1 | 2 |
Specifications
Thread Class
3b all ends
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Direction
right-hand all ends
Details
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.Flow Control Device
disk
Details
The part that controls the flow through the item.Bonnet Type
inside screw
Details
Indicates the type of housing on the item that accommodates the stem packing or spring.Bonnet Attachment Method
integral
Details
The means by which the bonnet is attached to the item.Disk Loading Method
spring
Details
The means of closing the item when inlet pressure decreases.Maximum Operating Temp
160.0 deg fahrenheit single response
Details
The maximum temperature at which the item is rated to operate for an extended period of time.Connection Style
gasket seal (boss) all ends
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.Valve Operation Method
manual
Details
The means used to control the operation of the valve.Connection Type
threaded internal boss all ends
Details
Indicates the type of connection/s/.Mounting Facility
threaded fastener
Details
The facility for mounting the item.Mounting Position
horizontal or vertical
Details
The installed position for which the item is designed.Maximum Operating Pressure
3000.0 pounds per square inch single response
Details
The maximum pressure at which the item is rated for operation.Nominal Thread Size
0.750 inches all ends
Details
A designation that is used for the purpose of general identification of the thread.Nominal Outside Diameter Tube Accommodated
0.500 inches all ends
Details
The nominal length of a straight line which passes through the center of the accommodated tube,and terminates at the outside circumference.Material
aluminum alloy body
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
aluminum alloy seat
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material
steel flow control device
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Media For Which Designed
hydraulic fluid, phosphate-ester base single response
Details
The type of media for which the item is designed.Style Designator
straight thru
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Supplementary Features
optional flow control device: stem
Details
Characteristics or qualities of an item,not covered in any other requirement,which are considered essential information for one or more functions excluding nsn assignment.Thread Series Designator
unf all ends
Details
A designation distinguishing one group of thread diameter-pitch combinations from another by the number of threads per measurement scale for a specific diameter.Master-Cross Reference List
| Part | CAGE | DAC | HCC | RNCC | RNVC | MSDS | RNAAC |
|---|---|---|---|---|---|---|---|
| 1-1254-1-2 | 92003 | X | - | 3 | 2 | - | XX |
| 668101-1 | 98897 | 5 | - | 5 | 2 | - | KE |
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | U | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 29300 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 576 | Z | 9 |
Certified Supplier
Order with confidence. We are a valued certified supplier serving customers in the military and aerospace industries.
- Genuine Manufacturers Parts
- 100% Product Inspection
- 7 Year Sales Record Retention
- Fast On-Time Delivery
- HAZMAT Certified
- Global Shipping
Manufacturer
LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY
CAGE: 98897
MARIETTA
, GA
, 30063-0001
UNITED STATES
View Products
FAQs
Frequently asked questions for NSN 4820-00-204-1955
What is the NIIN of the NSN 4820-00-204-1955?
The National Item Identification Number (NIIN) of the NSN 4820-00-204-1955 is 00-204-1955
When the NSN 4820-00-204-1955 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-204-1955 contain any precious metals?
Type/content is unknown
Does the NSN 4820-00-204-1955 contain any hazardous material?
No data in HMIRS
Can't Find It
If you didn't find what you need, don't worry, we're here to help! Our team is ready to help you find exactly what you need. Click below to contact us.
Similar Products