A rigid item designed to frame a structural opening for reinforcement purposes and/or to accommodate covers, access (as modified) and doors, access (as modified).
Classification: Other parts, nesoi, for use in other military aircraft, spacecraft and spacecraft launch vehicles (excluding parts of communication satellites)
NSN 6240-01-222-3523
NSN 5996-00-993-0841
NSN 5960-00-445-1332
NSN 4140-01-123-8801
NSN 5920-01-492-4462
NSN 6645-01-449-0785
NSN 4140-01-277-0577
NSN 6620-01-158-6570
NSN 6620-01-300-2631
NSN 6145-00-570-0516
NSN 5950-01-110-8887
NSN 6110-01-050-1283