NSN 4820-00-318-0231 8713541, 00-318-0231, 003180231
Product Details | VALVE SEAT
4820-00-318-0231 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.20248100015Valves, Powered48200018Valves, Nonpowered
Part Alternates: 8713541, 4820-00-318-0231, 00-318-0231, 4820003180231, 003180231
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-318-0231 | 22113 ( SEAT, VALVE ) |
Cross Reference | NSN 4820-00-318-0231
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8713541 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM |
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Technical Data | NSN 4820-00-318-0231
| Characteristic | Specifications |
|---|---|
| OVERALL HEIGHT | 0.703 INCHES NOMINAL |
| BODY STEPPED INSIDE DIAMETER | 0.297 INCHES MINIMUM AND 0.307 INCHES MAXIMUM FIRST STEP 0.245 INCHES MINIMUM AND 0.255 INCHES MAXIMUM SECOND STEP |
| MATERIAL | STEEL COMP 303 OR STEEL COMP B1113 OVERALL |
| HARDNESS RATING | NOT RATED |
| SEATING SURFACE SHAPE | FLAT |
| THREAD SERIES DESIGNATOR | UNF SINGLE THREADED PORTION |
| NOMINAL THREAD SIZE | 0.625 INCHES SINGLE THREADED PORTION |
| THREAD QUANTITY PER INCH | 18 SINGLE THREADED PORTION |
| THREAD CLASS | 2A SINGLE THREADED PORTION |
| THREAD LENGTH | 0.250 INCHES NOMINAL SINGLE THREADED PORTION |
Restrictions/Controls & Freight Information | NSN 4820-00-318-0231
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | B | Munitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.) |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||