Sir,
As per rule 2 (p) of Cenvat Credit Rules, 2004, “output service” means any service provided by a provider of service located in the taxable territory but shall not include a service,-
(1) specified in section 66D of the Finance Act; or
(2) where the whole of service tax is liable to be paid by the recipient of service.
In view of the above if you pay service tax under RCM as consignor, then it is not output service and hence you cannot take credit of service tax paid for removal of inputs as such to your vendor for manufacturing components.