| Factory | Number | Cross Interchange Type | Relevance |
|---|---|---|---|
| GATES | A51 | Direct Cross Interchange | 2 |
| THERMOID | A51 | Indirect Cross Interchange | 1 |
| NSN | 30305290352 | Indirect Cross Interchange | 1 |
| General Electric | K5705475AT26 | Indirect Cross Interchange | 1 |
| NSN | 3030007152884 | Indirect Cross Interchange | 1 |
| General Electric | K5705475AD28 | Indirect Cross Interchange | 1 |
| NSN | 3030005290352 | Indirect Cross Interchange | 1 |
| General Electric | 5871222 | Indirect Cross Interchange | 1 |
| NSN | 3030005280923 | Indirect Cross Interchange | 1 |
| BROWNING | A51 | Indirect Cross Interchange | 1 |
| NSN | 3030000808755 | Indirect Cross Interchange | 1 |
| SEARS | 67398 | Indirect Cross Interchange | 1 |
| GOODRICH | A51 | Indirect Cross Interchange | 1 |
| NAPA | A51 | Indirect Cross Interchange | 1 |
| OE | M41244 | Indirect Cross Interchange | 1 |
| GATES | 65051 | Indirect Cross Interchange | 1 |
| UNIROYAL | A51 | Indirect Cross Interchange | 1 |
| DEERE JOHN | M86421 | Indirect Cross Interchange | 1 |
| OE | K5705475AT26 | Indirect Cross Interchange | 1 |
| YALE&TOWNE | 2013616 | Indirect Cross Interchange | 1 |
| JASON | A51 | Indirect Cross Interchange | 1 |
| CASE | F36493 | Indirect Cross Interchange | 1 |
| OE | K5705475AD28 | Indirect Cross Interchange | 1 |
| BANDO | A51 | Indirect Cross Interchange | 1 |
| Durkee-Atwood | A51 | Indirect Cross Interchange | 1 |
| DAYCO | AP51 | Indirect Cross Interchange | 1 |
| OE | F51F | Indirect Cross Interchange | 1 |
| EATON | 227237 | Indirect Cross Interchange | 1 |
| Industry Standard | A51 | Indirect Cross Interchange | 1 |
| DAYCO | AK51 | Indirect Cross Interchange | 1 |
| OE | DC1153 | Indirect Cross Interchange | 1 |
| JOHN DEERE | M41244 | Indirect Cross Interchange | 1 |
| Industry Standard | A051 | Indirect Cross Interchange | 1 |
| DAYCO | A51 | Indirect Cross Interchange | 1 |
| CUMMINS | 3809148 | Indirect Cross Interchange | 1 |
| Metric Standard | 13X1330 | Indirect Cross Interchange | 1 |
| OE | BET57 | Indirect Cross Interchange | 1 |
| MASSEY FERGUSON | 422790DA | Indirect Cross Interchange | 1 |
| Metric Standard | 13C1355 | Indirect Cross Interchange | 1 |
| OE | BEL05 | Indirect Cross Interchange | 1 |
| CASE IH | F36493 | Indirect Cross Interchange | 1 |
| Metric Standard | 13C1350 | Indirect Cross Interchange | 1 |
| PIRELLI | A51 | Indirect Cross Interchange | 1 |
| OE | BEL026 | Indirect Cross Interchange | 1 |
| Metric Standard | 12X1330 | Indirect Cross Interchange | 1 |
| GOODYEAR | A51 | Indirect Cross Interchange | 1 |
| OE | 810053 | Indirect Cross Interchange | 1 |
| WHITE MOTOR | M1324 | Indirect Cross Interchange | 1 |
| GOODYEAR | 76051 | Indirect Cross Interchange | 1 |
| OE | 5H59830A51 | Indirect Cross Interchange | 1 |
| WHITE MOTOR | 312624080 | Indirect Cross Interchange | 1 |
| OPTIBELT | A51 | Indirect Cross Interchange | 1 |
| OE | 5H59828A51 | Indirect Cross Interchange | 1 |
| GM | 5110106 | Indirect Cross Interchange | 1 |
| RELIANCE | 107009 | Indirect Cross Interchange | 1 |
| OE | 5871222 | Indirect Cross Interchange | 1 |
| Carrier Transicold | 506201931 | Indirect Cross Interchange | 1 |
| OE | 511106 | Indirect Cross Interchange | 1 |
| FORD | 148083 | Indirect Cross Interchange | 1 |
| Carrier Transicold | 500101108 | Indirect Cross Interchange | 1 |
| OE | 4R41780 | Indirect Cross Interchange | 1 |
| DODGE | 107009 | Indirect Cross Interchange | 1 |
| Carrier Transicold | 500100108 | Indirect Cross Interchange | 1 |
| OE | 422790DA | Indirect Cross Interchange | 1 |
| Toro | 285250 | Indirect Cross Interchange | 1 |
| OE | 36003002 | Indirect Cross Interchange | 1 |
| DUNLOP | A51 | Indirect Cross Interchange | 1 |
| OE | 312624080 | Indirect Cross Interchange | 1 |
| FENNER | A51 | Indirect Cross Interchange | 1 |
| OE | 270371 | Indirect Cross Interchange | 1 |
| FENNER | A1330 | Indirect Cross Interchange | 1 |
| OE | 224131 | Indirect Cross Interchange | 1 |
| FENNER | 240A0133 | Indirect Cross Interchange | 1 |
| OE | 2219909 | Indirect Cross Interchange | 1 |
| Gardner-Denver | 13C14 | Indirect Cross Interchange | 1 |
| OE | 2013616 | Indirect Cross Interchange | 1 |
| Deutz-Allis | 72029350 | Indirect Cross Interchange | 1 |
| OE | 1609441 | Indirect Cross Interchange | 1 |
| HESSTON | 828004 | Indirect Cross Interchange | 1 |
| OE | 15995 | Indirect Cross Interchange | 1 |
| HESSTON | 63804 | Indirect Cross Interchange | 1 |
| OE | 060096 | Indirect Cross Interchange | 1 |
| Continental | 6535130 | Indirect Cross Interchange | 1 |
| NSN | MS39255A51 | Indirect Cross Interchange | 1 |
| PIX Belts | A51 | Indirect Cross Interchange | 1 |
| NSN | MS392552A51 | Indirect Cross Interchange | 1 |