| Item | Part No. | Part Name | Qty | Serial No. |
| (21S-60-31101) | VALVE ASS'Y | 10001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1660-01A0 T0 Y1660-05A0. | ||||
| NA371421266401 | VALVE ASS'Y,ARM | 10001- | ||
| 1 | \6\ | BLOCK,XA | 10001- | |
| NA371421267301 | SPOOL ASS'Y,ARM | 10001- | ||
| 2 | \6\ | SPOOL,ARM | 10001- | |
| 3 | NA401101010000 | O-RING | 10001- | |
| 4 | NA440211010000 | RING,BACK UP | 10001- | |
| 5 | NA371416994701 | PLATE | 10001- | |
| 6 | NA371416994801 | RETAINER | 10001- | |
| 7 | NA257417185601 | SPRING | 10001- | |
| 8 | NA371420510501 | BOLT | 10001- | |
| 9 | NA401101010000 | O-RING | 10001- | |
| 10 | NA440211010000 | RING,BACK UP | 10001- | |
| 11 | NA371416994701 | PLATE | 10001- | |
| 12 | NA031110501064 | SCREW | 10001- | |
| 13 | NA332090701014 | VALVE | 10001- | |
| 14 | NA257417053001 | SPRING | 10001- | |
| 15 | NA401100011010 | O-RING | 10001- | |
| 16 | NA371416994501 | SEAT | 10001- | |
| 17 | NA371416994601 | COVER | 10001- | |
| 18 | NA002010504551 | BOLT | 10001- | |
| 19 | NA401100014010 | O-RING | 10001- | |
| 20 | NA251416995201 | PLUG,PF3/8 | 10001- | |
| 21 | NA374420244135 | VALVE ASS'Y,OVER LOAD RELIEF | 10001- | |
| NA371421266501 | VALVE ASS'Y,SWING | 10001- | ||
| 22 | \6\ | BLOCK,WC | 10001- | |
| NA371421267401 | SPOOL ASS'Y,SWING | 10001- | ||
| 23 | \6\ | SPOOL,SWING | 10001- | |
| 24 | NA401101010000 | O-RING | 10001- | |
| 25 | NA440211010000 | RING,BACK UP | 10001- | |
| 26 | NA371416994701 | PLATE | 10001- | |
| 27 | NA371416994801 | RETAINER | 10001- | |
| 28 | NA257417185601 | SPRING | 10001- | |
| 29 | NA371420510501 | BOLT | 10001- | |
| 30 | NA401101010000 | O-RING | 10001- | |
| 31 | NA440211010000 | RING,BACK UP | 10001- | |
| 32 | NA371416994701 | PLATE | 10001- | |
| 33 | NA031110501064 | SCREW | 10001- | |
| 34 | NA332090701014 | VALVE | 10001- | |
| 35 | NA257417053001 | SPRING | 10001- | |
| 36 | NA401100011010 | O-RING | 10001- | |
| 37 | NA371416994501 | SEAT | 10001- | |
| 38 | NA371416994601 | COVER | 10001- | |
| 39 | NA002010504551 | BOLT | 10001- | |
| 40 | NA374421018409 | VALVE ASS'Y | 10001- | |
| 41 | NA403100012710 | O-RING | 10001- | |
| 42 | NA401100010010 | O-RING | 10001- |