assumimg you are a woman....
you don't get automatic credits for NI (only men get them between 60-65)
if you are not going to look for a job then you can't claim JSA, conditions of it are that you're available for work and actively seeking work.
if you are looking for a job then claim JSA even though you have got a works pension.
if you have been working F/t the past 2 years or so then you will probably be entitled to JSA Contribtion based. this is not dependant on any income, occupational pensions, partners wage, savings etc its purely based on NI conts.
contact your local jobcentre for details on how to apply.