NSN 4820-00-678-6147 GG6056B, 7005706, 00-678-6147
Product Details | VALVE SEAT
4820-00-678-6147 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: GG6056B, 7005706, 4820-00-678-6147, 00-678-6147, 4820006786147, 006786147
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-678-6147 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4820-00-678-6147
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Technical Data | NSN 4820-00-678-6147
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B6 PLAIN |
| OVERALL HEIGHT | 0.498 INCHES MINIMUM AND 0.500 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 2.495 INCHES MINIMUM AND 2.496 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 1.890 INCHES MINIMUM AND 1.900 INCHES MAXIMUM |
| MATERIAL | COPPER ALLOY OVERALL |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 46.0 ROCKWELL C MAXIMUM FACE |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 90.000 NOMINAL |
Restrictions/Controls & Freight Information | NSN 4820-00-678-6147
| 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: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| 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 | ||