Company item name--level, prismatic spi
No other part numbers with same form, fit, and function found.
NSN 6320-00-483-0451
NSN 4140-01-580-0277
NSN 2925-00-253-1655
NSN 5960-01-522-0391
NSN 5935-00-775-6759
NSN 6130-00-251-9156
NSN 6645-01-560-9339
NSN 2925-01-121-3355
NSN 5998-01-592-3310
NSN 5998-01-403-2586
NSN 5965-01-589-3968
NSN 6110-01-371-3049