| Item Name | Guide Valve Stem |
| 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) | 00-074-3839 (000743839) |
| NCB Code | USA (00) |
| Manufacturer | Caterpillar Inc, Safeguard Engine Parts Inc, Industrial Parts Depot Inc |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 2.872 INCHES NOMINAL |
| ABKV | OUTSIDE DIAMETER | 0.760 INCHES NOMINAL |
| ABXV | BORE DIAMETER | 0.3750 INCHES MINIMUM AND 0.3760 INCHES MAXIMUM |
| AETC | METALLIC HARDNESS RATING | 83.0 MINIMUM ROCKWELL B AND 96.0 MAXIMUM ROCKWELL B |
| AGQK | MAJOR DIAMETER LENGTH | 0.100 INCHES NOMINAL |
| AXHQ | GROOVE QUANTITY | 1 |
| BQDC | BORE COUNTERSINK | NOT INCLUDED |
| BQSF | BORE COUNTERBORE | NOT INCLUDED |
| BQSH | AA END DIAMETER | 0.625 INCHES NOMINAL |
| BQSJ | BB END SHANK DIAMETER | 0.688 INCHES MINIMUM AND 0.689 INCHES MAXIMUM |
| BQSK | BB END CHAMFER LENGTH | 0.030 INCHES NOMINAL |
| BQSL | BB END CHAMFER ANGLE IN DEG | 45.0 |
| BQSM | AA END CHAMFER LENGTH | 0.030 INCHES NOMINAL |
| BQSN | AA END CHAMFER ANGLE IN DEG | 45.0 |
| BQSR | SHOULDER FIRST FILLET RADIUS | 0.020 INCHES NOMINAL |
| BQST | SHOULDER SECOND FILLET RADIUS | 0.060 INCHES NOMINAL |
| BRQM | LENGTH FROM AA END TO LARGEST DIAMETER FACE | 1.106 INCHES NOMINAL |
| MATT | MATERIAL | IRON |
| STYL | STYLE DESIGNATOR | SHOULDERED-GROOVED SHANK |
| Relevant Components for NSN - 2805-00-074-3839, 2805000743839 | ||||
| 2835-00-219-2995 (2835002192995) | 2840-01-553-8583 (2840015538583) | 2810-00-321-3087 (2810003213087) | 2840-00-730-8469 (2840007308469) | |
| 2805-01-523-8375 (2805015238375) | 2840-01-588-3572 (2840015883572) | 2825-00-961-8353 (2825009618353) | 2815-00-970-8934 (2815009708934) | |
| 2815-01-341-8674 (2815013418674) | 2840-00-602-6043 (2840006026043) | 2835-01-146-3530 (2835011463530) | 2825-00-147-5712 (2825001475712) | |
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