| Item | Part No. | Part Name | Qty | Serial No. |
| (21S-60-31401) | VALVE ASS'Y | 10001- | ||
| THIS ASSEMBLY CONSISTS OF ALL PARTS SHOWN IN FIGS.Y1661-01A0 TO Y1661-06A0. | ||||
| NA371421268701 | VALVE ASS'Y,VALIABLE GAGE LEG | 10001- | ||
| 1 | \6\ | BLOCK,ZA | 10001- | |
| NA371421268801 | SPOOL ASS'Y | 10001- | ||
| 2 | \6\ | SPOOL | 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 | NA403100012710 | O-RING | 10001- | |
| 20 | NA401100010010 | O-RING | 10001- |