NSN 4820-00-439-0355 2021, 00-439-0355, 004390355
Product Details | VALVE SEAT
4820-00-439-0355 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: 2021, 4820-00-439-0355, 00-439-0355, 4820004390355, 004390355
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-439-0355 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4820-00-439-0355
Demand History | NSN 4820-00-439-0355
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 2021 | 2017-02-51 | 1 | US |
| 2021 | 2011-03-87 | 50 | NG |
| 2021 | 2010-03-68 | 2 | us |
Cross Reference | NSN 4820-00-439-0355
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 2021 | 79318 | MEGGITT (NORTH HOLLYWOOD), INC. |
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Technical Data | NSN 4820-00-439-0355
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B6 PLAIN |
| OVERALL HEIGHT | 0.252 INCHES MINIMUM AND 0.258 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.495 INCHES MINIMUM AND 0.497 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 416 OVERALL |
| HARDNESS RATING | 25.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 30.000 NOMINAL |
| SEAL ACCOMMODATION TYPE | GROOVED |
| MANUFACTURERS CODE | 79318 |
| DESIGN CONTROL REFERENCE | 2021 |
Restrictions/Controls & Freight Information | NSN 4820-00-439-0355
| 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 | ||