NSN 4820-00-340-0853 8U80174, 8U8017-4, 00-340-0853
Product Details | VALVE SEAT
4820-00-340-0853 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: 8U80174, 8U8017-4, 4820-00-340-0853, 00-340-0853, 4820003400853, 003400853
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-340-0853 | 22113 ( SEAT, VALVE ) |
Cross Reference | NSN 4820-00-340-0853
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 8U8017-4 | 60029 | WOODWARD, INC. DBA WOODWARD HRT |
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Technical Data | NSN 4820-00-340-0853
| Characteristic | Specifications |
|---|---|
| FLANGE DIAMETER | 0.684 INCHES MINIMUM AND 0.685 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.363 INCHES MINIMUM AND 0.367 INCHES MAXIMUM |
| FLANGE SEAT TO DISK END HEIGHT | 0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM |
| UNDER FLANGE HEIGHT | 0.085 INCHES MINIMUM AND 0.100 INCHES MAXIMUM |
| BODY STEPPED INSIDE DIAMETER | 0.202 INCHES MINIMUM AND 0.205 INCHES MAXIMUM FIRST STEP 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM SECOND STEP |
| MATERIAL | ALUMINUM ALLOY 7075 OVERALL |
| SURFACE TREATMENT | ANODIZE OVERALL |
| HARDNESS RATING | NOT RATED |
| SEATING SURFACE SHAPE | FLAT |
| SEAL ACCOMMODATION TYPE | RECESSED |
| SPECIAL FEATURES | 2 BLEED HOLES |
| III FSC APPLICATION DATA | VALVE,LINEAR,DIRECTIONAL CONTROL,ACFT |
| MANUFACTURERS CODE | 60029 |
| DESIGN CONTROL REFERENCE | 8U8017-4 |
Restrictions/Controls & Freight Information | NSN 4820-00-340-0853
| 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 | ||