| Item | Part No. | Part Name | Qty | Serial No. |
| (723-46-20104) | VALVE ASS'Y | 21290- | ||
| (723-46-20103) | VALVE ASS'Y | 20805-21289 | ||
| (723-46-20102) | VALVE ASS'Y | 20005-20804 | ||
| (723-46-20101) | VALVE ASS'Y | 20001-20004 | ||
| THESE ASSEMBLIES CONSIST OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 TO Y1660-16A0. | ||||
| 723-40-71103 | VALVE ASS'Y | 21290- | ||
| 723-40-71102 | VALVE ASS'Y | 20005-21289 | ||
| 723-40-71100 | VALVE ASS'Y | 20001-20004 | ||
| 1 | \6\ | BODY | 20001- | |
| 2 | \6\ | SPOOL | 20001- | |
| 3 | \6\ | RETAINER | 20001- | |
| 4 | 723-40-71340 | SPRING | 20001- | |
| 5 | 01252-60816 | BOLT | 20001- | |
| 6 | 723-46-15111 | CASE | 20001- | |
| 7 | \6\ | RETAINER | 20001- | |
| 8 | 07430-71380 | O-RING | 20001- | |
| 9 | 01252-60820 | BOLT | 20001- | |
| 10 | \6\ | SPOOL | 21290- | |
| \6\ | SPOOL | 20001-21289 | ||
| 11 | 723-40-71440 | SPRING | 20005- | |
| 723-40-71370 | SPRING | 20001-20004 | ||
| 12 | \6\ | PLUG | 20001- | |
| 13 | 709-74-91860 | PLUG | 20001- | |
| 14 | 07002-12434 | O-RING | 20001- | |
| 15 | \6\ | SPOOL | 20001- | |
| 16 | 723-40-71390 | SPRING | 20001- | |
| 17 | \6\ | PLUG | 20001- | |
| 18 | 07002-12434 | O-RING | 20001- | |
| 723-40-91600 | VALVE ASS'Y,RELIEF | 20001- | ||
| 19 | \6\ | SLEEVE | 20001- | |
| 20 | \6\ | COLLAR | 20001- | |
| 21 | \6\ | FILTER | 20001- | |
| 22 | \6\ | POPPET | 20001- | |
| 23 | \6\ | SPRING | 20001- | |
| 24 | \6\ | SCREW | 20001- | |
| 25 | \6\ | NUT | 20001- | |
| 26 | \6\ | O-RING | 20001- | |
| 27 | 702-16-53920 | O-RING | 20001- | |
| 28 | \6\ | O-RING | 20001- | |
| 29 | 07002-11623 | O-RING | 20001- |