NSN 4820-00-631-6494 76191, 00-631-6494, 006316494
Product Details | VALVE SEAT
4820-00-631-6494 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: 76191, 4820-00-631-6494, 00-631-6494, 4820006316494, 006316494
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-631-6494 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4820-00-631-6494
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Technical Data | NSN 4820-00-631-6494
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B6 PLAIN |
| OVERALL HEIGHT | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.397 INCHES MINIMUM AND 0.417 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 0.187 INCHES MINIMUM AND 0.188 INCHES MAXIMUM |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| HARDNESS RATING | 42.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 45.000 NOMINAL |
| MANUFACTURERS CODE | 99193 |
| DESIGN CONTROL REFERENCE | 76191 |
Restrictions/Controls & Freight Information | NSN 4820-00-631-6494
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| 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. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| 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 |
|---|---|---|
| NMF Description | 051080 | FAUCETS,BIBCOCKS,GATES VALVES |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| Water commodity Code | 576 | unknown |
| Originating Activity Code | XX | |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |