Nha is hood ventilation models na-19 and nb-19
A rigid or flexible item of various shapes attached to a structure for the purpose of providing access for inspection, service, replacement of components and/or adjustments or mounting operations. It is designed to be attached by means of bolt holes, slots, mounting ears, tabs, and the like. To permit access, the mounted cover requires partial or complete removal. It may include an observation window. For items permanently attached by hinges and the like, see door, access (as modified). Excludes all covers not specifically designed to provide access for the purposes listed above.
Classification: Other articles of iron or steel not wire nesoi
NSN 5935-00-174-5789
NSN 5985-00-888-7249
NSN 4140-00-547-8918
NSN 6650-00-276-9838
NSN 5930-01-650-7940
NSN 5905-01-173-8283
NSN 5935-00-984-2048
NSN 5975-00-802-6531
NSN 5999-01-005-0321
NSN 5990-01-076-6858
NSN 6220-00-545-8618
NSN 6150-01-189-9827