supply of (1) brake head for escorts design bmbs, (2) equalizer (boxnhl) for escorts design bmbs, and (3) brake head pin for escorts design bmbs.(1) brake head for escorts design bmbs, (2) equalizer (boxnhl) for escorts design bmbs, and (3) brake head pin for escorts design bmbs.,equalizer (boxnhl) for escorts design bmbs. drawing no. : _ _ _ _ _ _ _ _ material and specification : as per operation and maintenance manual of escorts make bmbs for freight stock with casnub bogie; doc. no. red-rd- bs-019-om-01; rdsos spec no. wd-23-bmbs-2008 (rev. 1) amendm ent no.1 of sept 2016. [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , brake head pin for escorts design bmbs. drawing no. : escorts drg. no. 4eb9764 mate rial and specification : as per operation and maintenance manual of escorts make bmbs for freight sto ck with casnub bogie; doc. no. red- rd-bs-019-om-01 ; rdsos spec no. wd-23-bmbs-2008 (rev. 1) a mendment no.1 of sept 2016. [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ] , brake head for escorts design bmbs. drawing no. : escorts drg. no. 3eb7375. material and specification : as per operation and maintenance manual of escorts make bmbs for freight stock with casnub bogie; doc. no. red- rd-bs-019-om-01; rdsos spec no. wd-23-bmbs- 2008 (rev. 1) ame ndment no.1 of sept 2016. [ warranty period: 36 months after the date of delivery ] [quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]