NSN 4820-00-348-2957 40G903, 41A69PC149, 41A69PC58
Product Details | VALVE SEAT
4820-00-348-2957 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: 40G903, 41A69PC149, 41A69PC58, 4820-00-348-2957, 00-348-2957, 4820003482957, 003482957
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-348-2957 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4820-00-348-2957
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Technical Data | NSN 4820-00-348-2957
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B2 THREADED FLANGED |
| FLANGE DIAMETER | 7.474 INCHES MINIMUM AND 7.496 INCHES MAXIMUM |
| BODY INSIDE DIAMETER | 5.500 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.875 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 1.063 INCHES NOMINAL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 45.000 NOMINAL |
| TAPER MINOR DIAMETER | 5.500 INCHES NOMINAL |
| TAPER MAJOR DIAMETER | 6.250 INCHES NOMINAL |
| TAPER LENGTH | 1.250 INCHES NOMINAL |
| SEAL ACCOMMODATION TYPE | GROOVED |
| THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |
| NOMINAL THREAD SIZE | 7.000 INCHES SINGLE THREADED PORTION |
| THREAD QUANTITY PER INCH | 8 SINGLE THREADED PORTION |
| THREAD LENGTH | 0.875 INCHES NOMINAL SINGLE THREADED PORTION |
| SPECIAL FEATURES | TWO LUGS,0.625 IN. SQUARE,WELDED ON 6.25 IN.ID 180 DEGREES APART |
| MANUFACTURERS CODE | 53553 |
| DESIGN CONTROL REFERENCE | 40G903 |
Restrictions/Controls & Freight Information | NSN 4820-00-348-2957
| 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: | A | Item does not contain precious metal |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| 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 | ||
Management | NSN 4820-00-348-2957
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9C | Navy-owned stocks of defense construction material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | S9C | Defense Supply Center Columbus Columbus, OH 43215 |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | V | TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |