Submitted name is shroud, stage 1
An item within a case, compressor, aircraft gas turbine engine, designed to surround or partially surround a rotor, compressor, aircraft gas turbine engine. It's primary purpose is to protect other components of the engine in the event of an impeller or rotor break up.
Classification: Parts of gas turbine aircraft engines, other than for use in civil aircraft
NSN 6135-01-578-8919
NSN 5925-00-261-8166
NSN 6135-00-753-2276
NSN 4140-01-044-5118
NSN 5945-01-532-6285
NSN 5985-01-421-3495
NSN 6130-01-110-9597
NSN 6135-00-635-9187
NSN 6135-01-100-3593
NSN 5960-01-067-9531
NSN 5975-01-087-3789
NSN 5985-01-159-7718