The BSA parts book is re-produced below to assist owners in finding the correct part number for the parts they require.
1. 37-3644 Rear wheel x 2
2. 37-3640 Rear brake drum (left-hand) x 1
3. 37-3493 Brake shoe spring x 2
4. 37-3498 Brake shoe complete x 2
5. 97-1527 Trunnion silentbloc x 2
6. 83-1489 Trunnion distance piece x 1
7. 83-1694Trunnion complete x 1 ..
8. 14-0101 Bolt, bump stop mounting (1/4″ unified fine x 1/2″) X 1
9. 60-2417 Spring washer, bump stop mounting (1/4″ x .425″x .072″) x 1
10. 76-0101 Washer, bump stop mounting (.265″ x 1/4″ x .080″) x 1
11. 83-1722 Mounting block (left-hand) x 1
12. 83-1719 Locking clip, torsion bar adjuster x 2
13. 83-1699 Roll pin, mounting block (1/4″ x 7/8″) x 2
14. 83-1723 Mounting block (right-hand) x 1
15. 83-1713 Nylon bush, torsion bar x 2
16. 83-1704 Adjusting screw, torsion bar x 2
17. 83-1474 Support tube, mounting blocks x 1
18. 83-1714 Torsion bar (left-hand) x 1
19. 83-1715 Torsion bar (right-hand) x 1
20. 37-3678 Spindle complete (right-hand) x 1
21. 70-9313 Ballrace (right-hand outer) x 1
22. 60-2362 Steel ball (3/16″ diameter) x 1
23. 60-2324 Washer, hub nut (1/2″ x 1″ x .092″) x 2
24. 14-1205 Locknut, wheel hub (1/2″ unified fine) x 2
25. 37-3632 Hub cap x 2
26. 14-1202 Wheel nut (5/16″ unified fine) x 6
27. 60-2321 Washer, wheel mounting (5/16″ x 5/8″ x .072″) x 6
28. 21-2025 Stud, wheel mounting (5/16″ unified fine x 1″) x 6
29. 37-3642 Wheel hub (right-hand) x 1
30. 70-9311 Circlip, spindle ballrace x 1
31. 90-5525 Ballrace (right-hand inner) x 1
32. 83-1887 Dust cover, axle beam x 1
33. 14-1205 Locknut, chainwheel mounting (1/2″ unified fine) x 1
34. 57-4060 Recessed washer, chainwheel x 1
35. 19-8696 Final drive chain x 1
36. 57-4261 Felt washer, axle beam x 1
37. 37-3631 Oil seal, axle beam x 1
38. 57-4061 Bush, axle beam x 1
39. 14-1201 Nut, rear brake lever to cam (1/4″ unified fine) x 1
40. 54-9081 Washer, rear brake lever to cam (1/4″x 9/16″ x .078″) x 1
41. 19-8697 Pedal chain x 1
42. 57-3966 Freewheel (18 teeth) x 1
43. 57-4142 Chainwheel (46 teeth) x 1
44. 57-3847 “Spirefix” chain tensioner x 1
45. 57-3834 Pulley, chain tensioner x 1
46. 57-3963 Tensioner arm complete x 1
47. 14-6219 Bolt, tensioner bracket (5/16″ unified coarse x 1 1/2″) x 4
48. 60-2418 Washer, tensioner bracket (5/16″ x 1/2″ x .080″) x 4
49. 57-3960 Chain Tensioner bracket x 1
50. 57-3965 Spring, chain tensioner x 1
51. 83-1791 Rear clamp, torsion bar x 1
52. 83-1792 Mounting block, torsion bar x 1
53. 14-0206 Bolt, support channel (1/4″ unified fine x 1 3/4″) x 2
54. 14-6103 Set-screw, support channel (1/4 ” unified coarse x 3/4″) x 2
55. 60-2417 Lockwasher, support channel (1/4″ x .425″ x .072″) x 2
56. 83-1793 Support channel x 1
57. 14-6107 Adjuster screw, final drive chain (1/4″ unified coarse x 1 1/2″) x 1
58. 14-6401 Nut, adjuster screw (1/4 ” unified coarse) x 1
59. 57-4141 Freewheel boss x 1
60. 37-3626 Brake cam lever complete x 1
61. 37-3546 Brake cam spindle bush x 1
62. 57-4118 Drive shaft complete x 1
63. 70-9313 Bearing, drive shaft x 1
64. 70-9311 Circlip, drive shaft bearing x 1
65. 37-3637 Rear brake fulcrum pin x 1
66. 83-1849 Rear axle beam complete x 1
67. 37-3629 Rear brake cam complete x 1
68. 60-2417 Lockwasher, rear carrier x 2
69. 14-1201 Locknut, rear carrier (1/4″ unified fine) x 2
70. 83-1484 Circlip, trunnion x 1
71. 82-9939 Thrust washer. trunnion x 1
72. 83-1705 End washer, trunnion x 2
73. 83-1703 Bush, rear axle x 1
74. 83-1954 “0” ring, trunnion pivot x 1
75. 83-1946 Spacing washer, trunnion pivot x 1
76. 83-1947 Felt washer, trunnion pivot x 1
77. 83-1945 Sealing washer, trunnion pivot x 1
78. 60-2417 Lockwasher, trunnion pivot (1/4″ x .425″ x .072″) x 1
79. 14-0101 Bolt, trunnion pivot (1/4″ unified fine x 1/2″) x 1
80. 21-2025 Stud, rear carrier mounting (5/16″ unified fine x 1″) x 1