NSN 4910-00-423-6721 21304, 00-423-6721, 004236721
Product Details | VALVE SEAT REFACING PILOT
4910-00-423-6721 A device which, when inserted into the bore of a valve guide on an internal combustion engine, serves as a center post for aligning and guiding the grinding stone and/or reamer of a valve seat refacer.
Part Alternates: 21304, 4910-00-423-6721, 00-423-6721, 4910004236721, 004236721
Maintenance and Repair Shop Equipment | Motor Vehicle Maintenance and Repair Shop Specialized Equipment
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 49 | 01 JAN 1963 | 00-423-6721 | 11030 ( PILOT, VALVE SEAT REFACING ) |
Drawings & Photos | NSN 4910-00-423-6721
Demand History | NSN 4910-00-423-6721
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 21304 | 2013-03-77 | 5 | Indonesia |
Cross Reference | NSN 4910-00-423-6721
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 21304 | 07429 | BLACK AND DECKER US INC |
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Technical Data | NSN 4910-00-423-6721
| Characteristic | Specifications |
|---|---|
| DESIGN TYPE | EXPANDING |
| SIZE | 0.3750 INCHES NOMINAL |
| STYLE DESIGNATOR | D8 COUNTER BORED GUIDE |
| EXPANDING PILOT LOWER END LENGTH | 3.156 INCHES NOMINAL |
| EXPANDING PILOT UPPER END LENGTH | 1.531 INCHES NOMINAL |
| UPPER END DIAMETER | 0.375 INCHES NOMINAL |
| MANUFACTURERS CODE | 07429 |
| DESIGN CONTROL REFERENCE | 21304 |
Restrictions/Controls & Freight Information | NSN 4910-00-423-6721
| 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: | 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 | ||
Management | NSN 4910-00-423-6721
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 |