Bogie Center pivot top for BOXN Wagon. Drawing No.: RDSO Drg. No. WD- 85079- S- 02, Alt. 27, Item No. 2. Material and Specification: AAR: M- 201, Gr. ' C ', Carbon 0. 32 % max. and conforming to RDSO s Spec. Nos. WD- 21- CASNUB- 22NLB- BOGIE- 93, Amendment No. 6 of July 2020 and WD- 17- CASNUB- 22HS- BOG IE- 92 ( Revision- 3 ), Amendment No. 6 of July. 2020.