NSN 4820-01-234-4843 23020N, 23020N PC 23, 23020NPC23
Product Details | VALVE SEAT
4820-01-234-4843 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: 23020N, 23020N PC 23, 23020NPC23, 26913-00-58, 4820-01-234-4843, 01-234-4843, 4820012344843, 012344843, 269130058
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 14 JUN 1986 | 01-234-4843 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4820-01-234-4843
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Technical Data | NSN 4820-01-234-4843
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B1 THREADED FLANGED |
| FLANGE DIAMETER | 3.375 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 2.212 INCHES NOMINAL |
| FLANGE SEAT TO DISK END HEIGHT | 0.219 INCHES NOMINAL |
| UNDER FLANGE HEIGHT | 0.704 INCHES NOMINAL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI TYPE 316,STELLITE NO. 6 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | NOT RATED |
| SEATING SURFACE SHAPE | ANGULAR |
| SEAT ANGLE IN DEG | 20.000 NOMINAL |
| THREAD SERIES DESIGNATOR | UNS SINGLE THREADED PORTION |
| NOMINAL THREAD SIZE | 3.125 INCHES SINGLE THREADED PORTION |
| THREAD QUANTITY PER INCH | 14 SINGLE THREADED PORTION |
| THREAD CLASS | 3A SINGLE THREADED PORTION |
| THREAD LENGTH | 0.688 INCHES NOMINAL SINGLE THREADED PORTION |
| SPECIAL FEATURES | WITH TWO LUGS,0.438 IN. WIDE BY 0.312 IN. H,SPACED 180 DEG APART |
Restrictions/Controls & Freight Information | NSN 4820-01-234-4843
| 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. |
| Category | Code | Description |
|---|---|---|
| NMF Description | 051080 | FAUCETS,BIBCOCKS,GATES VALVES |
| Less than car load rating | ||
| Less than truck load rating | W | Rating Variable |
| Water commodity Code | 576 | unknown |
| Originating Activity Code | AX | Defense Supply Center Columbus Columbus, OH 43216-5000 |
| 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 |
Management | NSN 4820-01-234-4843
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |