NSN 4820-01-178-6491 01-178-6491, 011786491
Product Details | VALVE SEAT
4820-01-178-6491 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: 4820-01-178-6491, 01-178-6491, 4820011786491, 011786491
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01-178-6491 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4820-01-178-6491
Cross Reference | NSN 4820-01-178-6491
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 028697DC | 99565 | ADMIRAL VALVE, LLC DBA CPV MANUFACTURING |
| 041547DC | 99565 | ADMIRAL VALVE, LLC DBA CPV MANUFACTURING |
| 041547DC DWG-B 4154 | 99565 | ADMIRAL VALVE, LLC DBA CPV MANUFACTURING |
| 041547DCCP | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |
| B-4154 | 99565 | ADMIRAL VALVE, LLC DBA CPV MANUFACTURING |
| PL-139 ITEM 4 | 99565 | ADMIRAL VALVE, LLC DBA CPV MANUFACTURING |
| PLC-10564 P/N-041547DC | 99565 | ADMIRAL VALVE, LLC DBA CPV MANUFACTURING |
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Technical Data | NSN 4820-01-178-6491
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B6 PLAIN |
| OVERALL HEIGHT | 0.438 INCHES NOMINAL |
| BODY OUTSIDE DIAMETER | 2.750 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 1.256 INCHES NOMINAL |
| MATERIAL | NICKEL ALLOY R-405 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281B FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | NOT RATED |
| SEATING SURFACE SHAPE | FLAT |
| SPECIFICATION/STANDARD DATA | 99565-PL-139 ITEM 4 MANUFACTURERS STANDARD |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | CLEANED IN ACCORDANCE WITH MIL-C-52211 |
| CRITICALITY CODE JUSTIFICATION | ZZZY |
| MANUFACTURERS CODE | 99565 |
| DESIGN CONTROL REFERENCE | PL-139 ITEM 4 |
Restrictions/Controls & Freight Information | NSN 4820-01-178-6491
| 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 |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||