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 6685-01-096-0899
NSN 5965-01-026-7834
NSN 7035-01-285-4473
NSN 6220-01-378-7467
NSN 6150-01-115-1830
NSN 5985-00-513-3420
NSN 5930-01-535-8234
NSN 6240-00-117-3778
NSN 5910-00-156-6357
NSN 5950-00-456-6185
NSN 6110-01-416-4959
NSN 6135-01-400-2947