Valve Seat
346554PC4
(NSN) National Stock Number
4820-00-175-1981
Federal Supply Classification
4820 Nonpowered Valves
Item Name Code
22113
Schedule B Code
8481909090
Summary
3a single threaded portion thread class, 0.053 inches nominal single threaded portion thread length, 0.100 inches nominal overall height, 0.375 inches nominal body inside diameter, 0.005 inches nominal seat radius, 5.000 minimum and 30.000 maximum seat angle in deg
| DAC | HCC | DMIL | RNCC |
|---|---|---|---|
| X | - | - | 3 |
| RNVC | SADC | MSDS | RNAAC |
|---|---|---|---|
| 2 | - | - | XX |
Identification
A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.
| INC | FIIG | Concept | Condition |
|---|---|---|---|
| 22113 | A15500 | - | 2 |
Specifications
Thread Class
3a single threaded portion
Details
A numeric-alpha designator indicating the pitch diameter tolerance and an external or internal thread.Thread Length
0.053 inches nominal single threaded portion
Details
A measurement of the extent of threads,including incomplete threads,along a line parallel to the longitudinal axis.Overall Height
0.100 inches nominal
Details
The distance measured in a straight line from the bottom to the top of an item.Body Inside Diameter
0.375 inches nominal
Details
The length of a straight line which passes through the center of a body,and terminates at the inside circumference.Seat Radius
0.005 inches nominal
Details
The radius of the end surface upon which the mated surface seats.Seat Angle In Deg
5.000 minimum and 30.000 maximum
Details
The angle of the end surface upon which the mated surface seats,expressed in degrees.Nominal Thread Size
0.562 inches single threaded portion
Details
A designation that is used for the purpose of general identification of the thread.Seating Surface Shape
angular
Details
The physical configuration of the surface of the seat.Material
copper alloy overall
Details
The chemical compound or mechanical mixture properties of which the item is fabricated.Material Document And Classification
qq-b-611-b fed spec single material response overall
Details
The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.Style Designator
plain threaded
Details
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.Thread Series Designator
unf single threaded portion
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.Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
| HMIC | PMIC | ESD/EMI | Criticality |
|---|---|---|---|
| N | A | - | - |
Freight
Universal / National Freight and Handling Information
| UFC | HMC | LTL | LCL |
|---|---|---|---|
| 29300 | - | W | - |
| RVC | WCC | TCC | SHC |
|---|---|---|---|
| - | 576 | Z | 9 |
Certified Supplier
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Manufacturer
NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
CAGE: 10001
WASHINGTON
, DC
, 20376
UNITED STATES
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FAQs
Frequently asked questions for NSN 4820-00-175-1981
What is the NIIN of the NSN 4820-00-175-1981?
The National Item Identification Number (NIIN) of the NSN 4820-00-175-1981 is 00-175-1981
When the NSN 4820-00-175-1981 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 4820-00-175-1981 contain any precious metals?
Does not contain precious metal
Does the NSN 4820-00-175-1981 contain any hazardous material?
No data in HMIRS
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