NSN 4820-00-091-4261 21935, 00-091-4261, 000914261
Product Details | VALVE SEAT
4820-00-091-4261 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: 21935, 4820-00-091-4261, 00-091-4261, 4820000914261, 000914261
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-091-4261 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4820-00-091-4261
Cross Reference | NSN 4820-00-091-4261
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 21935 | 81982 | HYDRO-AIRE, INC. |
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Technical Data | NSN 4820-00-091-4261
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B7 PLAIN FLANGED |
| FLANGE DIAMETER | 0.434 INCHES MINIMUM AND 0.435 INCHES MAXIMUM |
| BODY OUTSIDE DIAMETER | 0.324 INCHES MINIMUM AND 0.326 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 0.187 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.065 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.090 INCHES NOMINAL |
| MATERIAL | STEEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-7420 COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | NOT RATED |
| SEATING SURFACE SHAPE | FLAT |
| MANUFACTURERS CODE | 81982 |
| DESIGN CONTROL REFERENCE | 21935 |
Restrictions/Controls & Freight Information | NSN 4820-00-091-4261
| 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 |
|---|---|---|
| NMF Description | 194160 | WASHER OR GASKETS, IRON OR STEEL, |
| Less than car load rating | U | 50 |
| Less than truck load rating | U | 50.0 |
| Water commodity Code | 713 | 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 |