TB 5-4220-200-12-1
1. Decal
2. Knob
3. Cap assembly
4. Cap assembly O-Ring
5. Yoke retainer
6. Yoke
7. Filter retainer ring
8. Filter
9. Filter assembly spring
10. Spring block
11. Back-up ring
12. Spring block O-Ring
13. Disc & retainer spring
14. Disc & retainer
15. Regulator body
16. Plug screw O-Ring
17. Plug screw
18. Plug screw (auxiliary)
19. Plug screw O-Ring (auxiliary)
20. Disc & retainer pin
21. Pin support
22. Diaphragm
23. Diaphragm gasket
24. Diaphragm spring pad
25. Adjustment spring
26. Spring retainer
27. Adjusting screw
28. Secondary diaphragm
29. Retainer ring
30. High pressure adapter
31. Yoke retainer ring
Figure 4-1. First Stage Regulator (P/N 1088-00 and P/N 1077-00)
4-11