NSN 4470-00-945-9647 8538PC39, 8538PC39SPCLN, 00-945-9647
Product Details | VALVE SEAT
4470-00-945-9647 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: 8538PC39, 8538PC39SPCLN, 4470-00-945-9647, 00-945-9647, 4470009459647, 009459647
Furnace, Steam Plant, and Drying Equipment; and Nuclear Reactors | Nuclear Reactors
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 44 | 00-945-9647 | 22113 ( SEAT, VALVE ) |
Drawings & Photos | NSN 4470-00-945-9647
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Technical Data | NSN 4470-00-945-9647
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B5 PLAIN THREADED |
| OVERALL HEIGHT | 1.000 INCHES NOMINAL |
| BODY INSIDE DIAMETER | 0.750 INCHES NOMINAL |
| MATERIAL | NICKEL ALLOY OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | NOT RATED |
| SEATING SURFACE SHAPE | FLAT |
| TAPER MINOR DIAMETER | 0.844 INCHES MINIMUM AND 0.846 INCHES MAXIMUM |
| TAPER MAJOR DIAMETER | 0.901 INCHES MINIMUM AND 0.902 INCHES MAXIMUM |
| TAPER LENGTH | 0.048 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNEF SINGLE THREADED PORTION |
| NOMINAL THREAD SIZE | 1.125 INCHES SINGLE THREADED PORTION |
| THREAD QUANTITY PER INCH | 18 SINGLE THREADED PORTION |
| THREAD CLASS | 2A SINGLE THREADED PORTION |
| THREAD LENGTH | 0.610 INCHES NOMINAL SINGLE THREADED PORTION |
| SPECIAL FEATURES | 0.562 HEX HOLE BROACHED IN END OPPOSITE SEAT |
| REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | AS DIFFERENTIATED BY MATERIAL IN ACCORDANCE WITH ACTIVITY HXQUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| CRITICALITY CODE JUSTIFICATION | ZZZY |
| MANUFACTURERS CODE | 01343 |
| DESIGN CONTROL REFERENCE | 8538PC39 |
Restrictions/Controls & Freight Information | NSN 4470-00-945-9647
| 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 | ||