NSN 4820-01-253-0442 16207182, 1620718-2, 01-253-0442
Product Details | VALVE SEAT
4820-01-253-0442 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: 16207182, 1620718-2, 4820-01-253-0442, 01-253-0442, 4820012530442, 012530442
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 11 APR 1987 | 01-253-0442 | 22113 ( SEAT, VALVE ) |
Demand History | NSN 4820-01-253-0442
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 4820-01-253-0442 | 2025-06-160 | 50 | US |
| 4820-01-253-0442 | 2025-06-160 | 50 | US |
| 1620718-2 | 2014-10-289 | 14 | United States |
Cross Reference | NSN 4820-01-253-0442
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 1620718-2 | 99251 | CARLETON LIFE SUPPORT SYSTEMS INC. DBA COBHAM MISSION SYSTEM |
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Restrictions/Controls & Freight Information | NSN 4820-01-253-0442
| 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: | F | The item is an Aviation Critical Safety Item/Flight Safety Critical Aircraft Part ((ACSI/FSCAP). |
| Automatic Data Processing Equipment: | 0 | Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9) |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||