AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Insert Engine Valve Seat |
| Federal Supply Group (FSG) | Engines Turbines and Components |
| Federal Supply Class (FSC) | 2805 Gasoline Reciprocating Engines Except Aircraft and Components |
| National Item Identification Number (NIIN) | 00-423-3278 (004233278) |
| NCB Code | USA (00) |
| Manufacturer | Hollingsworth John R Co, Briggs And Stratton Corp |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABKW | OVERALL HEIGHT | 0.252 INCHES NOMINAL |
| ADAR | BODY OUTSIDE DIAMETER | 1.341 INCHES NOMINAL |
| ADAS | BODY INSIDE DIAMETER | 1.130 INCHES NOMINAL |
| AJSG | SEAT ANGLE IN DEG | 0.750 NOMINAL |
| CQFM | HARDNESS RATING | 50.0 ROCKWELL C MINIMUM BODY |
| CQFM | HARDNESS RATING | 55.0 ROCKWELL C MAXIMUM FACE |
| CQKM | SEATING SURFACE SHAPE | ANGULAR |
| MATT | MATERIAL | STEEL CORROSION RESISTING OVERALL |
| STYL | STYLE DESIGNATOR | PLAIN |
| Relevant Components for NSN - 2805-00-423-3278, 2805004233278 | ||||
| 2805-00-164-1620 (2805001641620) | 2815-01-207-9726 (2815012079726) | 2825-00-377-3256 (2825003773256) | 2805-01-195-3494 (2805011953494) | |
| 2840-00-966-8075 (2840009668075) | 2840-01-467-5221 (2840014675221) | 2815-99-534-5610 (2815995345610) | 2840-01-657-1001 (2840016571001) | |
| 2840-00-869-7004 (2840008697004) | 2840-01-414-6654 (2840014146654) | 2840-00-704-1319 (2840007041319) | 2840-00-869-9397 (2840008699397) | |
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